Granted, there are his views on immigration and trade, which aren’t in sync with United States multinational companies that manufacture products abroad. But then again, Mrs. Clinton opposes the Trans-Pacific Partnership too, so that doesn’t provide much of a choice.

Jeffrey Immelt, General Electric’s chief executive, who employed Mr. Trump on “The Apprentice” when G.E. owned NBC, was asked by Vanity Fair about him over the summer. “The Donald Trump that I had a chance to work with, I found to be fun to work with,” he said. “The words? I can’t reconcile with anything I believe in, or that I think the country stands for or that the company stands for.”

By the way, this was Mr. Trump’s reply last year to businesses that stopped doing business with him: “Macy’s, NBC, Serta and Nascar have all taken the weak and very sad position of being politically correct even though they are wrong in terms of what is good for our country.” (I should note here that I co-anchor “Squawk Box” on CNBC, which is a unit of NBCUniversal.)

In fairness, it is worth pointing out that only 11 C.E.O.s of the Fortune 100 donated to Hillary Clinton, according to The Journal. Mr. Trump does have support from some businessmen like Jack Welch, Carl C. Icahn and Wilbur Ross, among others.

But for a group that has historically leaned Republican, the absence of contributions is eye-opening, particularly since at least 19 of them gave to the other Republican candidates in the primaries.

There is a good reason, wholly unrelated to political correctness, that the business community has not rallied around Mr. Trump’s economic plans. On its merits, that plan is expected to hurt the economy, according to nonpartisan economists. It is hard to find many serious economists, except a handful mostly advising his campaign, who say otherwise.

According to the Committee for a Responsible Budget, a nonpartisan think tank that includes a list of luminaries from both sides of the aisle, Mr. Trump’s economic plan would add $5.3 trillion to our national debt. That compares with $200 billion as a result of Mrs. Clinton’s plan.