>>82059495 (OP)
>Is there susch thing as a "male loneliness epidemic"?
Yes.
>If so what is actually causing it?
It was made literally illegal to have men's spaces. So, here's how it works: some men aren't attractive to women. They're told, "well if you're lonely and women don't want you, then you can still hang out with men!" and this is actually a valid argument in a healthy society, many times throughout history men have been perfectly happy to have male friends and not deal with women, whether that's monasteries, hobby groups, whatever.
HOWEVER. Along come women demanding to be part of those groups. So men can't have any group that's just for men, they have to let women in or the government will arrest them. Once women get into that group, they change the social dynamics, they start flirting with the most attractive men in the group, while demanding that the least attractive men in the group shut up and stop having fun or just that they outright get kicked out.
So men are left with no social outlets at all. That's the male loneliness epidemic. Undesirable men are told to just make male friends but also it's illegal to have men's clubs.