US Politics

So who gets to decide what is and isn't allowed?

No one. No one is censoring anyone. I specifically said "calling out." Just because ideas exist doesn't mean they shouldn't be challenged and/or dismissed.

The de-platforming thing (which I tried to clarify in an edit) was about denying equal time or platforms in particular cases. Especially in cases where that platform is being used to lie.

It is a really thorny issue but bad ideas (say anti-vaxx) should be brought to light and debated to show how bad they are.

Yes. And there should be contexts in which those debates take place. But we shouldn't give climate change deniers a chance to muddy the waters when we're discussing scientific evidence for climate change.

The problem right now (and why I want Trump gone) is that the public has completely lost trust in institutions and current scientific thinking. Trump has eroded this from the beginning of his presidency but the Brexit campaign did the same here.

No debate from me here. Giving anti-science ideas more air time isn't going to rebuild trust though. Calling them out for what they are will.