I agree that it's hard to see your own ideological commitments without seeing alternatives. Yet allowing any and all ideologies the same opportunities to compete for public attention is clearly problematic. You don't want to wait until flat-earth theories and holocaust denial go fully mainstream to start to nuance your no-standards policy.
In that case, how do you know the rational ones won out in you?
It's always other people getting brainwashed we worry about, right?
That said, we shouldn't then count all our present knowledge as worthless and any and all kinds of information as equally valid and worthy of dissemination.
I do get your fear - censorship is a dangerous tool that is not always used responsibly. Yet abandoning any kind of social self-regulation in what information circulates publicly sounds a lot more dangerous.
That's not what I said.
Step 1 of teaching people to uncritically accept crappy ideas is to remove all references to anything that contradicts them. Maybe it's time to revise your stance?