One should hope that one can distinguish between lies and nonsense on the one hand and fact and honest debate on the other, good faith and bad faith engagement, without discriminating between ideological positions. If you find your ideological position is indistinguishable from lies and nonsense ... well ... that could happen. But the idea non-partisan platforms that censor content are working from is that nonsense is apart from partisanship.
I'm happy to recognize the distinction between fact-checking and partisanship. But if you're running an algorithm that decides who sees what content, you're responsible for the choices that algorithm makes. I think platforms try to disclaim responsibility by claiming to be "neutral" in the sense that they don't actively censor based on partisan preferences, and this is disingenuous.