I totally agree that many online comments are toxic and many people should go touch grass. However I also see this as the next step in a series of humans getting their communications cut off by computers.

Talking to people online is in fact a way that some people get socialization and develop writing skills. If my prognostication is correct and people give up even trying to interact on most websites because "it's not worth starting a conversation only to find out 10 minutes later that they're a bot" or "no one listens to my opinion because that's what all the bots say so they don't think I'm real", the effect is to make the web even more "read-only" where people are discouraged from sharing themselves.