I disagree with you. I think that the phenomenon that you described (which exists on most social platforms that are advertising themselves as "free speech") is not present everywhere and my impression is that the problem is exactly with the "chase all the users" mentality.
One example that I can think of the top of my head is Scott Alexander's blog, where I saw opinions put forward (most of the times in a respectful manner) that ranged from extremely egalitarian to extremely libertarian. I am entirely sure that some of the people posting there have views that veer into "one flavour of bigot" or another, but because the community as a whole would rise against the most objectionable types of ideas that one could put forward, they never do it. To me that is a healthy community and I hope it can be achieved in other places without needing an "alpha-personality" at the center for people to gather around.
One example that I can think of the top of my head is Scott Alexander's blog, where I saw opinions put forward (most of the times in a respectful manner) that ranged from extremely egalitarian to extremely libertarian. I am entirely sure that some of the people posting there have views that veer into "one flavour of bigot" or another, but because the community as a whole would rise against the most objectionable types of ideas that one could put forward, they never do it. To me that is a healthy community and I hope it can be achieved in other places without needing an "alpha-personality" at the center for people to gather around.