The article I linked in another comment explains more, but Eron Wolf, founder of FUTO, kindof pressured or hoodwinked Louis Rossmann into publicly interviewing Curtis Yarvin who happily refers to himself as a "reactionary fascist" and publicly states that black people are inherently suitable for enslavement.

I don't know that it's so much that they support "fascist projects" as much as they go out of their way to be a platform for spreading fascist propaganda, and particularly promoting the fascist Curtis Yarvin.