Most young people of all backgrounds reject the Fox News propaganda.
The old white farts who absorb the lunatic rants of people like Carlson are dying off. Some quicker than others thanks to their refusal to vax. And yeah I get to call them old white farts because I'm a 63 year old white guy and that is what they are. Living, breathing farts who emit noxious fumes every time they speak.
It's true that the Proud Boys and some other racist groups have young people, but they are a distinct minority.
That said, I don't believe Fox News should enjoy first amendment protections, but that's a whole different post.