I hear this question posed a lot in this context, but we already done this now don't we? Someone (or ones) decides which laws are valid, which educational material to teach our kids etc. Are those not ok because some person or body of people have decided for the rest of society?

This narrative has killed many republicans who feared getting vaccinated, and it will only kill more. One could argue that it is their own actions, but I am not keen on blaming people for their circumstances.

The answer is we decide what is disinformation through our institutions and the value we place on them. Your and I's opinion on certain matters should never weigh remotely as much as an expert's on a particular topic unless we are such experts.

We ought to measure the value of one's speech through the scrutiny it has to go through to be published at trusted channels.