Controversial firebrand Ann Coulter’s new book, “Adios, America,” argues that fettered immigration is destroying the country by driving down the salaries of the middle class while increasing their tax burden. And it’s the elites on both sides — right and left — who are making it happen. An excerpt:

This is “Goodbye,” America. Adios. Paalam Na. No further warning will be issued.

For 40 years, the people have tried to tell politicians they want less immigration, but the politicians won’t listen.

Every single elite group in America is aligned against the public — the media, ethnic activists, big campaign donors, Wall Street, multimillionaire farmers and liberal “churches.”

They all want mass immigration from the Third World to continue. Both political parties connive to grant illegal aliens citizenship and bring in millions more legally, and the media hide the evidence.

Their game plan is: Never allow an honest debate on immigration.

Only in the case of immigration is the public systematically lied to from every major news outlet. They tell us, for example:

Polls show the public overwhelmingly supports “comprehensive immigration reform.”

No poll shows this. The Left uses polls to manipulate public opinion, rather than quantify it. Typical is a Brookings Institution Poll that asked respondents to choose between two ways to solve the illegal immigration problem: “Arrest and deport all those who are here illegally” or “Provide an earned path to citizenship.” Absolutely no one has proposed that we deport all those here illegally — much less “arrest” them. But can’t I be against amnesty without voting for rounding up illegals at gunpoint? No! Look at the menu — no substitutions!

Immigrants are doing jobs Americans just won’t do.

Americans are perfectly happy to do all manner of jobs — they just won’t do them for $7 an hour. Unions used to care about that, but now they just want political power. Democrats want the votes; certain business interests want the cheap labor. So both parties have conspired against the middle class.

Amnesty will be fantastic for the economy.

Unless we’re talking about the Mexican economy, this is patently ridiculous. Adding another 30 million poor, unskilled, non-taxpaying, welfare-receiving people to America is good only for government workers and employers who refuse to mechanize their operations or pay Americans one dollar more.

Hispanics will never vote for Republicans unless they pass amnesty.

First of all, moron Republicans: If they can’t vote, they can’t vote against you. Second, Hispanics who are citizens don’t care about amnesty! They’re already in. They vote 8-2 for the Democrats because they like big government. In 2011, 73% of California Hispanics said they’d support a candidate who wanted to “secure the border first, stop illegal immigration, and then find a way to address the status of people already here illegally.” In a 2014 Univision poll, 58% chose “Require border security first” over “Pass immigration reform.”

Americans are under no moral obligation to grant amnesty to people who have broken our laws.

The American electorate isn’t moving to the left — it’s shrinking. No minds have been changed. Democrats just brought in a new group of voters whose minds don’t need to be changed.

Back when Democrats still claimed to represent working Americans, they opposed illegal immigration. Since being taken over by the Far Left, all that matters to them is changing the electorate to one that doesn’t mind liberal insanity.

A nation’s immigration policies are at least as important as, say, going to war. But the media have decided that who gets to live in America is none of America’s business.

The public can’t be trusted with the truth. Go back to the kids’ table. The grown-ups are deciding this. Anyone who challenges the elite consensus on immigration will be swarmed with blitzkrieg attacks.

It can be difficult to discuss America’s immigration policies when it’s considered racist merely to say, “We liked America the way it was.”

The media convince people to believe lies by the simple process of repetition: Diversity is a strength! We’re a nation of immigrants! It’s a crisis to have people living in the shadows!

I don’t mean to be obtuse, but why is it a crisis that illegal aliens are “living in the shadows”? I forget. We need to bring in more people who will drive down the wages of our fellow Americans because — why again?

It is not a crisis for Americans that other people have come into their country illegally and now find it uncomfortable to be living here breaking the law. It’s supposed to be uncomfortable to break the law. Perhaps illegal aliens should have considered that before coming.

Americans are being asked to respond to the world’s oldest joke: A guy kills his parents, then throws himself on the court’s mercy as an orphan.

How did all these illegal aliens get into “the shadows” in the first place? They weren’t kidnapped and dragged across the border. They came here. At most — and this is dubious — it’s a crisis for the illegal immigrants.

But “living in the shadows” is evidently better than living in Guadalajara, otherwise, there’s an easy solution.

Living in the shadows doesn’t seem to be much of a crisis even for them.

Americans are being asked to respond to the world’s oldest joke: A guy kills his parents, then throws himself on the court’s mercy as an orphan.

Any amnesty is an inducement to illegal aliens. If you choose to argue it’s not, I refer you to history. This is not the first time Americans have been promised secure borders in return for amnesty.

The 1986 Simpson-Mazzoli Act, also known as “The Charlie Brown and Lucy with Football Act,” was supposed to end illegal immigration forever: Give us amnesty one time, then: Never again.

Illegal immigration sextupled.

Contrary to everything you’ve heard, the only options are not: Amnesty or deporting 11 million people. There’s also the option of letting them stay in the shadows — or the same thing we’ve been doing for the last 30 years.

Americans are under no moral obligation to grant amnesty to people who have broken our laws. “The moral thing to do” is usually defined as “following the law.”

Historically, Democrats have found it fun and profitable to bully Republicans into taking suicidal positions. This latest push for amnesty is approximately the Republicans’ fifth mugging.

As with all disastrous legislation, Republicans are being told, “We have got to do this yesterday!”

Debate any urgent liberal demand long enough, and the problem usually just goes away.

The fact that Democrats want 30 million new voters is not a good enough reason to ignore the law and screw over American workers, as well as legal immigrants already here.

How about Republicans try this: We’re not giving you anything — not even half — because there’s no reason to do so.

Excerpted from “Adios, America: The Left’s Plan to Turn Our Country Into a Third World Hellhole” (Regnery Publishing), out this week.