Incentive to be Tolerant and Inclusive
All users, particularly whales, have financial incentive to be tolerant and inclusive. This grows the overall network effect and makes everyone the most money possible. To the extent any community adopts a culture of intolerance that overly restricts the range of acceptable opinion it will push people away. New communities will form to serve the needs of those who are rejected and the free market competition for mindshare will continue.
I am surprised to find myself explaining this to people who I was fairly certain understood economics on, at least, a basic level.