Not sure if this is true. Social media shows a very distorted view on polarization. Past research shows that the vast majority of polarising content (>95%) is generated by a vast minority of users (~6%). It is shown repeatedly that the polarization found in (online) media, differs drastically from every day felt polarization.

Literally "getting off the internet" seems like a valid strategy. I think it is more likely that .odern games hijack native reward systems more than "deep strategy games" do (whatever that means). In fact the gameplay mechanics in most games are still relatively the same, just prettier, faster running. Back in the day we couldn't have a high FPS shooter with a lot of bang simple because the technology didn't allow for it. Furthermore games were a niche back then as well. Now games are more mainstream and the relative group is smaller, than the mainstream group.