Guns have a propensity to do a lot of good, if they were sanely regulated they could easily do more good than harm.
>Is religion causing more harm than good?
Hard to say, religion does a lot of good. Keeping people scared of god is an incredibly strong motivator for many, and most of what religion prescribes is good. I wouldn't mind taxing religion, but it's unconstitutional.
>Is social media causing more harm than good?
I think the answer here is clearly no. Yes, social media causes harm, but it causes much more joy.
>The Dollar
I understand that you're joking here but the amount of good the dollar does so clearly surpasses the harm its illicit use cause that I don't find this very funny.
Anyway, no one is trying to ban cryptocurrency.