According to Rep. Luis Gutierrez, Obama intends “to act broadly and generously” on behalf of the “millions and millions” of illegal immigrants in the United States today.

Gutierrez, who meets often with the president, is implying that Obama, before Labor Day and by executive order, will grant de facto amnesty to five million illegal immigrants.

They will be granted work permits and permission to stay. With his pen and his phone, Obama will do what Congress has refused to do.

There is a precedent. Obama has already issued one executive order deferring the deportation of “dreamers,” children brought into the United States illegally by their parents before 2007.

Alabama Sen. Jeff Sessions is on to what is afoot. “We must prevent the president’s massive amnesty from going forward,” he says, and urges legislation to block an executive amnesty. But this divided Congress is not going to pass any such law. Nor would Obama sign it.

Still, would Obama dare deliberately ignite a nationwide firestorm by declaring an executive amnesty for 5 million illegal immigrants?

Why not? Consider the risks — and the potential rewards.

On the downside, an Obama amnesty would polarize the country, imperil red-state Democrats and cause even allies to conclude he had become a rogue president who adheres to the Constitution and rule of law only so far as they comport with his agenda.

And what is his agenda? As he has said: to transform America.

Obama wants history to rank him among the transformational presidents like Lincoln, FDR and Reagan. And what better way to transform America than to ensure her evolution from a Western and predominantly Christian country into that multicultural, multilingual, multiethnic, borderless land Teddy Roosevelt inveighed against as nothing but a “polyglot boarding house for the world”?

Obama did not like the America we grew up in.

As he told that closed-door fundraiser in San Francisco in 2008, that America was too full of life’s losers who “get bitter, they cling to guns or religion or antipathy toward people who aren’t like them or anti-immigrant sentiments.”

What would be the political benefits to Obama of an amnesty?

It could weld Hispanics to the Democratic Party, would be wildly popular with the ideological and Christian left, and quietly welcomed by those Chamber-of-Commerce Republicans who have silently supported amnesty and secretly want immigration off the table in 2016.

An Obama amnesty would instantly become the blazing issue of 2014, replacing his foreign policy fecklessness, diffident leadership, and IRS, VA, Benghazi and Obamacare foul-ups and scandals.

Among Republicans, a roar would arise from the base to impeach Obama, no matter the consequences. But while impeachment would divide Republicans, a Democratic call to arms to save the first black president from impeachment would unite his party and bring the money rolling in.

Every Republican running for the Senate would face the question: How would you vote on convicting the president, if the GOP House votes to impeach him for high crimes and misdemeanors?

In the long run, an amnesty that puts 5 million illegal immigrants, most of them from Third World nations, along with their progeny, on a certain path to citizenship, would complete the process of turning America blue.

How would such a blanket amnesty affect our country’s future?

After this second amnesty, word would go out to the world that if you can get into America, by whatever means necessary, and lay low for a while, there is a near certainty you will be able to stay.

The children pouring in from Central America, we are told, are fleeing repressive regimes. But billions of people in Asia, Africa and Latin America live under repressive regimes.

If all are entitled to come, they will come. And they will remake the West and America in their own image, Obama’s image, the image of that Tower of Babel, the United Nations General Assembly.

How many more tens of millions of poor and uneducated people can we absorb before we exceed the carrying capacity of the republic?

How much more diversity can we handle before there is no unity left?

As we boast of our ethnic, cultural and religious diversity, what still makes us one nation and one people? For it is not religion. Not culture. Not custom. Not history. Not tradition. Not language. Not ethnicity.

Is it only a Constitution and Bill of Rights — over the meaning of which we fight like cats and dogs.

What problems of America — from sinking test scores, to collapsing roads and bridges, to endless borrowing to save our social safety net, to income inequality, to culture wars — will be more easily solved with tens of millions more of the world’s destitute arriving?

The only problem that will surely be solved by the next 50 million immigrants, who follow the 50 million legal and illegal immigrants who have come since 1965, will be the problem presented by the continued existence of the Republican Party.

Americans should let Obama know what they think of his amnesty now, before he imposes it upon us.

Patrick J. Buchanan is the author of the new book “The Greatest Comeback: How Richard Nixon Rose From Defeat to Create the New Majority.”