I agree with you that nothing has been proven either way. But I would say that, because people hate social media so much, we should perhaps be a little skeptical of claims that it causes harms. It's very easy to believe "X thing I hate" causes harm, even when the evidence is not solid.

> So since I can't wait another century for their to finally be good science about social media, I have no choice but to go with my gut.

Doing nothing seems fine!

I agree. Whenever everyone thinks something is true, we should be skeptical that it's true. Since everyone hates Putin so much, we should be skeptical that he is actually bad. Since everyone thinks the sky is blue, it must actually be green.