I do think that the kind of people that complain about the male loneliness epidemic are the kind of people who would struggle with those issues-

The only way to establish relationships is to be real - so of course if you believe you can’t be real, that’ll be a problem.

Relationships kick off and grow and solidify via socializing - so of course if you’ve let your social skills atrophy and believe you have no chance to practice and improve them, that’ll be a problem.

Your third point sounds like it’s really just a combination of your first two points, discomfort with being open and honest with others, and discomfort with intentionally socializing with strangers. Of course if you avoid those things to spare yourself the discomfort, you’re also avoiding the opportunity to make friends.

The rest of it (testosterone? Co-ed?) sounds like bullshit to me.

What I hear you being concerned about is: people don’t see the value in leaving their comfort zone in order to pursue what they want. Those fears you mention about not being real, and not knowing how to socialize, and not being around others, and being forced to go to schools for women (??) just sound like irrational fears to me. None of that stuff will kill you.

If being a man is anything, then surely, being a man is facing those kinds of situations and saying “this makes me uncomfortable but it has to be done, I am afraid but I will do it anyway.”

For me, that is the male loneliness epidemic, if such a thing even exists - it’s the unwillingness of some men to face their fears and do what needs to be done to make a connection with another human being.