As far as I can tell, Fried, who was a federalist, and who died earlier this year, did not, himself call for genocide. Rather, he said that whether or not a university should discipline a student for it depended on the context, as, he argued, does the constitution.
I think you are wrong, however, about being hard pressed to find.... Plenty of fascists out there who not only support genocide, but are actively calling for it, including members of the Israel government calling for elimination of Palestinians, and including many transphobes against trans and nonbinary people.