You're confusing your freedom to say what you want as a requirement for others to listen and accept your content on their servers. Anyone is free to post whate

You're confusing your freedom to say what you want as a requirement for others to listen and accept your content on their servers. Anyone is free to post whatever their server's policy allows. Every server is free to enforce their written or unwritten policy. If your type of content does not align with a server, you need to find a different server. Depending on your content ideas, you might need to host your own. No server is required to accept posts from any specific server. There are/will be servers that are isolated islands of content that no other servers want to interact with. This isolation is freedom respecting.