1. A higher bar for comments based on age of account and karma.
2. A limit on the number of comments from any individual account, e.g. each account would only get one or two comments. The idea being "get out your point as clearly as possible in one message", because you won't have the option for endless back-and-forth (and potentially escalating) debate.
Watching any post that touches on Covid over the past year and a half -- which should at least have aspects that are not inflammatory, unlike your examples -- I've become convinced that the answer is simply "no". It may be better here than other places, but it still isn't good. And it's not what I come here for. I don't engage with them anymore and I would prefer a world where they weren't submitted here at all.