"Trump's immigration proposals are as dangerous as they are stunning," railed amnesty activist Frank Sharry.

"Trump ... promises to rescind protections for Dreamers and deport them. He wants to redefine the constitutional definition of U.S. citizenship as codified by the 14th Amendment. He plans to impose a moratorium on legal immigration."

While Sharry is a bit hysterical, he is not entirely wrong.

For the six-page policy paper, to secure America's border and send back aliens here illegally, released by Trump last weekend, is the toughest, most comprehensive, stunning immigration proposal of the election cycle.

The Trump folks were aided by people around Sen. Jeff Sessions, who says Trump's plan "re-establishes the principle that America's immigration laws should serve the interests of its own citizens."

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The issue is joined, the battle lines are drawn, and the GOP will debate and may decide which way America shall go. And the basic issues – how to secure our borders, whether to repatriate the millions here illegally, whether to declare a moratorium on immigration into the USA – are part of a greater question.

Will the West endure or disappear by the century's end as another lost civilization? Mass immigration, if it continues, will be more decisive in deciding the fate of the West than Islamist terrorism. For the world is invading the West.

A wild exaggeration? Consider.

Monday's Washington Post had a front-page story on an "escalating rash of violent attacks against refugees" in Germany, including arson attacks on refugee centers and physical assaults.

Buried in the story was an astonishing statistic. Germany, which took in 174,000 asylum seekers last year, is on schedule to take in 500,000 this year. Yet Germany is smaller than Montana.

How long can a geographically limited and crowded German nation, already experiencing ugly racial conflict, take in half a million Third World people every year without tearing itself apart and changing the character of the nation forever?

Do we think the riots and racial wars will stop if more come?

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And these refugees, asylum seekers and illegal immigrants are not going to stop coming to Europe. For they are being driven across the Med by wars in Libya, Syria, Iraq, Afghanistan and Yemen, by the horrific conditions in Eritrea, Ethiopia, Somalia and Sudan, by the Islamist terrorism of the Mideast and the abject poverty of the sub-Sahara.

According to the U.N., Africa had 1.1 billion people by 2013, will double that to 2.4 billion by 2050, and double that to 4.2 billion by 2100.

How many of these billions dream of coming to Europe? When and why will they stop coming? How many can Europe absorb without going bankrupt and changing the continent forever?

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Does Europe have the toughness to seal its borders and send back the intruders? Or is Europe so morally paralyzed it has become what Jean Raspail mocked in "The Camp of the Saints"?

The blazing issue in Britain and France is the thousands of Arab and African asylum seekers clustered about Calais to traverse the Eurotunnel to Dover. The Brits are on fire. Millions want out of the EU. They want to remain who they are.

Each week we read of boats sinking in the Med with hundreds of refugees drowning. Yet many, many more make it to the Greek and Italian islands, and thence north to Germany and Scandinavia and the welfare states of Western Europe. Once they step onto EU soil, they are in.

This unending invasion has called into existence anti-immigrant and anti-EU parties in almost every country in Europe. Few of these parties existed at the turn of the century. How does this all end?

"Humankind cannot bear very much reality," wrote T.S. Eliot.

Is the West still blind to reality, to the inevitable future that awaits if the West does not secure its frontiers and close its borders to mass immigration?

Peoples of European descent, everywhere they live, have birth rates below replacement levels. Yet, most live in the world's most desirable neighborhoods.

The great and growing populations of mankind are in the Third World. Countless millions are determined to come to the West, legally if they can, illegally if they must. And the more who succeed, the more who come.

Either Western nations take tough measures to secure their borders, or the Western nations will be swamped. The character of their countries will be altered forever, and smaller countries will become unrecognizable. And as this is happening, ethnic and racial clashes will become more common, as they are now becoming across Europe.

"The principle that America's immigration laws should serve the interests of its own citizens" is paramount, said Sen. Sessions.

Sessions is right. America is our home. We decide who comes in and who does not, how large the American family becomes, whom we adopt and whence they come. It has become the issue of 2016.

Indeed, it is the issue of the 21st century.