The irony here is of course that those strong and virile Romans the fascists sought to emulate were themselves quite often homosexual, or at least not averse to homosexual sex every now and then.
Off the top of my head I can think of Julius Caesar (derided, that much is true, by his enemies, for enjoying taking the passive role every now and then - but not for having sex with males per se) and Augustus, but I'm sure there were others.