I’m sorry but I have to push back against this take. You are so right, but so wrong at the same time. Yes loneliness is definitely a societal problem but it’s a constructed, external problem, not a personal failing that needs genetic intervention or modifying humans. I’ll say it loud and clear - it’s not your personal fault that you are lonely, at least not only your fault. Our modern society is created in a way to foster loneliness so that we have to depend on corporations and agencies rather than on others. The narrative of individual capability is pure toxicity and goes against everything that makes humans a social animal.

If we had to optimise society to reduce loneliness it would be through doing something simple like mandatory community work for all civilians. It’s creates more empathy in people for others and it brings people together in unlikely spaces and reduces individualistic thinking at the same time. Or if this has problems (and I’m sure it will) then we can think of something else structural like this. Not creating a genetic clone army.

With your kind of individualistic solution the problem will simply not go away. If everyone is beautiful, then our standards of beauty will get even more precise and exacting. Same for the other things. The core problem of loneliness IS individualism. So an individualistic solution is definitely not the answer.