There are plenty of women in far right/neo-fascist etc. groups, and often people from those groups have relationships with other people from those groups. Your comment gives very much the impression that only males are fascists, which is absolutely not my experience dealing with Forza Nuova/Casapound people (both neo-fascists parties) in my youth.
I also see the male loneliness epidemic as an orthogonal problem to males being fascists, but that's yet another topic.
Yes, I am quite sure that in most countries the distribution of women/men within those groups are not equal and unbalanced towards men.
That said, being a member of the actual group doesn't mean not being in those people social groups, accepting or even sharing some of their ideas etc.