> Same thing regarding a growing number of women too but men don't have the same support structure as women do.

I’m a woman and I honestly have no idea what you’re talking about here.

Regardless, I’ve struggled with intense social anxiety and loneliness since about 13.

The only long-term ”solutions” I’ve found that help have been: having a partner, good relationships with my family and joining a club (in my case, a football club) that has recurring sessions weekly.

Obviously, the latter is something that’s more easy to “engineer” than the first two.

So my only advice is to find or start a club or interest group that regularly meets. I’ve found that groups on Meetup often don’t have the same group if people attending. So rather search for local sports groups or community groups where you’ll meet some of the same people week after week and be able to build relationships with them over time.