I find shows like this really annoying.
There are some crazy weirdos.
But there are also some interesting movements toward more right wing positions by some groups in the US. Young black men, for one. And increasingly I'm seeing this with some women too. Gay men and lesbians, immigrants, especially African, lots of Hispanic Americans.
Some of these people are more what you'd think of as socially conservative, others more center right, and of course there are a variety of viewpoints on many issues. But it is absolutely a thing.
It's really interesting, and could be worth looking at in more depth. But of course the BBC, Guardian, etc would much rather focus on people who are actual nut-jobs.
I also think, that while it can work for a person doing this sort of documentary to take a hard hitting approach, it also doesn't work if the person is unwilling to be really honest about listening and understanding their POV. You have to be able to really see things from others' POV and be willing to be self-critical, especially about your own assumptions.