I believe a total boycott is one approach to try to get a group of people to change their behaviors. I think unionization is another approach that people take, who, for whichever reasons, don't want to leave, and try to gain collective bargaining power to change how the group of people behaves. I think political representation is another approach that people take to change the structure of decision making so that when people don't like something, they have more options than threatening to leave.

But as you say, maybe most, or even the vast majority, of Twitter users don't care and just want it for the "free" entertainment. And that's fine, I'm not saying that people who are satisfied with the current behavior should take any approach to try to change them. I guess I just don't think "well, if you don't like it, you should just leave" approach works very well in situations where it can be quite detrimental for people to leave. Maybe it seems easier because it's "just an app" but some people build much of their professional and social lives on some of these platforms—I know many of these platforms have mediated my professional and social lives during the pandemic—and just up and leaving everything behind may not be the approach that people always want to take for change.