I'm not a fan of
forcing civility, myself, as the
forcing, itself, is uncivil.
But I do feel that it's OK to establish a community/context, where a set of rules governs the decorum, and allow people to either join, or leave. If people don't want to abide by those rules, then it is OK (incumbent, even) for the community to sanction them; but only in the context of that community. I'm not into calling up a troll's workplace, and trying to get them fired. I think it's OK to ban them, though.
They'll vote with their feet. If they like it, they'll stay. If they don't, they'll leave, and it will wither on the vine. Elon Musk is doing exactly that, with the new Twitter. Personally, I don't want to play in that sandlot, but a lot of others, do. I won't go and try to stop them.
I've spent most of my life, in a mutual support community that has a very specific culture and set of rules. We don't have a police force to enforce them, but we also won't change them for any rando that insists that we do so, for their convenience. We've been doing things this way, since before I was born, and will continue to do so, forever (hopefully).
It's like walking into a Jewish Temple, or Islamic Mosque, and saying "I love pork, and it is my right to eat pork. I also want to join your organization, so I insist that you start allowing the eating of pork."
Even worse, in the organization that I'm involved with, there are commercial interests that would like us to change, and we can get some very strange pressures. Sort of like paid pork-eaters, showing up at synagogues, and demanding pork reform.
Just let the dervishes whirl. If it's meant to last, it will. If not, it will become another footnote in history.
It may also change, but that's no guarantee, and I have watched changes destroy good things. Good ol' Chesterton's Fence...