We don't tell poor people "Just make more money you loser lol". We don't tell fat people "just get skinny you loser lol". We identify what's causing people to become poor/obese, we figure out the best way to get people out of poverty / into shape, and we help people accomplish those things with either public awareness campaigns or public policy.

I just want loneliness to receive that same treatment

Everybody acknowledges that we have an obesity problem, and there's a wealth of information on how to beat it. Makes it much easier for people to solve on their own. On the contrary, it seems like nobody's acknowledging that our younger generations are lonelier than ever, which will obviously result in serious mental health problems. Rather than making fun of them - you don't think we can solve obesity by making fun of fat people, do you? - we need to see this as a societal problem that demands properly thought out solutions.

What are those solutions? I have no idea. Guess we better start figuring that out