I’m not sure YouTube has any responsibility to do anything with the Alt-Lite. If they aren’t inciting violence, slandering, etc. then leave them alone. In the war of ideas, beat them with better ideas. If they are relying on debunked science then point it out.
I really hate the idea of “gateway” ideologies leading to fascism as much as I hate the idea that video-games lead to real world violence or marijuana leads to heroin addiction. It’s lazy, disempowering, and elitist. We want people to learn to think…then make our schools better.