So just don't commit thought crime against Big Brother and you'll be good?
When a platform gets to a certain size, we need to consider its effects on society as a whole. Hiding undesirable content and promoting desirable content can be a monopolistic practice for the org to get outsized impact on things it finds important. Whether that's "good" or "bad" depends on how closely that org's interests are aligned with the average person.
I, for one, do not think Meta's interests are aligned with my own, so I think it's bad that they have so much sway that they can steer the public discourse through their ranking algorithm. Shadowbanning is just another way for the platform to get their desired message out.
Instead of trying to restrict yourself to only posting what the platform wants you to post, you should be seeking alternatives that allow you to post what you think is valuable to post.