I admire your optimism. I don't share it. Human nature has a stubborn streak of "what can I get away with," and when you couple that to the anonymity of the internet... well, we can all see the results. And not just here. It's everywhere.
As for a renaissance of good parenting... I wouldn't hold your breath there either. I was talking about that just the other day with my own mother - 86 and still going. She was decrying the same thing we are: toddlers being raised by devices. I had to remind her that this is the same as it ever was. Her generation plopped down their kids in front of a TV and got on with their lives. My generation substituted VHS for live broadcast in a bid for slightly longer periods of time kid-free. Now it's the internet. Next it will probably be AI companions which, if recent history is anything to judge by, will raise an entire generation of narcissists, white supremacists, and people who, if they even make it to adulthood, will still have the emotional quotient of a five year old child. Now THAT is a future to weep for.
Any way you slice it I can't see a very bright future for multiplayer gaming. Singleplayer pve is the future? It certainly would seem like a better fit for generations of the self-absorbed, anti-social, and internet-crippled.