I see that more as the strength of the federation model. Yes, communities or entire instances could and will have political leanings that disagree with your own, and that difference could lead to censoring decisions that would be counter to your opinion.

But, nothing is stopping you or anyone from creating that same community with your political beliefs as the guiding methodology to compete. Then people who disagree with the original decisions can flock to the new one. It’s a co-existence that I think is impossible with the centralized model.