“A Great Divide” is a righteous, topical and long-winded culture clash drama about America at its most racist and least welcoming.

Unlike the similarly themed “Minari,” it’s more directly about race and more overt in its messaging — downright heavy-handed at times.

And unlike “Minari,” it’s not a period piece. It’s an Unwelcoming West — Wyoming, in this case — as it might be today, in a country that’s finding a lot more tolerance for racism and xenophobia than we’d previously believed about ourselves.

Jae Suh Park (TV’s “Friends from College”) and Ken Jeong play parents who move to a monied corner of rural Wyoming for “a fresh start.”

Director and co-writer Jean Shim’s film goes a little bit wrong, right off the bat, by parking the Lees — sensitive and smart teen son Benjamin (Emerson Min) and his confidante, Grandma (MeeWha Alana Lee) are with them — in an Architectural Digest lodge/home, a hilltop “castle” in wood, glass and stone. They show up in a Lincoln Navigator.

And none of this is theirs. Husband Isaac’s old friend/new-boss (Margaret Cho) is setting them up out on the edge of the Tetons, with breathtaking vistas, moose and bison roaming the wild and an exclusive private high school all laid at their feet.

Sure.

All Benjy has to do is write a compelling essay to show “if I fit in,” at Riverton High, is how he puts it. Maybe Granny can help.

But will he fit in? Can they? His bestie from back in California (Miya Cech) comes for a summer visit, and his first girlfriend is a witness to instant blasts of hostility from the founding family’s entitled crank (Jamie McShane). A “friendly” and “helpful” privately-paid park ranger (Marshall Allman) is sent to give the kids a helpful “orientation” to the place, the wildlife and “the rules” here.

With the threat of “charges” being brought by Old Man McNather, the ranger visit is mandatory with a hint of bullying.

McNather is Mr. “YOU people” and others absorb “Leave the woods to those of us who belong here” ethos from him. As the Lees were passed by a Vanilla ISIS flag-flying pickup on the way from the airport, they’re practically braced for the “God-d–ned CHINESE” and “slanty-eyed” and “as long as you’re here legal” insults and veiled threats.

Mom is particularly sensitive to this. She has her reasons. Granny counsels Benjy that “At the end of hardship comes happiness.” Sure it does.

Director and co-writer Jean Shim’s script is built around a series of character monologues — about the struggles of immigrants, the racism Asians have faced in American workplaces and schools, the generational divide on how to cope with that and the like.

Those pauses to deliver long anecdotes can be moving, but to a one they stop the narrative in its tracks.

Jeong tries to play a few scenes “light,” making “Yee-haw” jokes with a drawl at the local self-labeled “redneck” eatery. That scene rings about as true as the “I’ve got this rich pal who’s given me a job, a mansion and a Matthew McConaughy Lincoln in Wyoming” set-up.

It’s disappointing that a film about such an important subject leans into unreality — artificial affluence, a teenager consulting Granny for everything — as it marches doggedly into melodrama.

The racism is over-the-top, but that doesn’t make it feel less real. Other plot elements are simplistic forshadowing for the predictable arc the story settles into.

The impulses behind depicting this “Great Divide” in modern America are noble and realistic. But the movie wearing that title is entirely too contrived and monologue-driven to live up to that promise.

Rating: TV-16, racial slurs, wildlife injury

Cast: Jae Suh Park, Emerson Min, Miya Cech, West Mulholland, Seamus Deaver, Marshall Allman and Ken Jeong.

Credits: Directed by Jean Shim, scripted by Jeff Yang, Martina Nagel and Jean Shim. A Gravitas Ventures release on Amazon Prime.

Running time: 1:40