Nothing scares politicians more these days than business people throwing their hats into the election ring.

The longtime pols who have collected public salaries for decades in some regards feel very threatened by successful billionaires saying they can do better.

Look at how the Republicans ridiculed now-President Trump during his primary run as he knocked over 17 professional politicians.

Last week it was the Democrats’ turn to challenge another successful person from business.

They attacked and heckled Starbucks founder Howard Schultz, a lifelong Democratic supporter, when he decided to explore running for president as an independent candidate. Schultz said he does not like the leftist, socialistic turn the Democratic Party has taken, particularly with Alexandria Ocasio-Cortez and Elizabeth Warren.

Schultz is the embodiment of an American success story. He grew up very poor in the Canarsie housing projects and yet built Starbucks from 13 stores into an $85 billion company with 238,000 employees.

Schultz fostered perhaps the most upwardly mobile work environment in America — and is mugged by the professional protest machine.

Schultz was trolled on Twitter by AOC, the 29-year-old bartender, who wrote, “Why don’t people ever tell billionaires who want to run for president that they need to ‘work their way up’ maybe they should start with city council first”?

Schultz’s business provides a way for many baristas to begin their careers and offers progressive health care and college support money.

Starbucks is an American icon and Schultz, a Jew from the projects, built it. I think he deserves a tad more respect.

Trump shattered the glass ceiling for business people to run. Americans want accomplishments from their politicians, not empty promises. That’s what Trump was and is all about.

And the kid from Canarsie — whether you like his politics or not — is the American Dream.