But surely there needs to be a way to insulate ourselves from the detrimental effects of an individual's influence.

All of these terms are subjective, too, but there has to be a line somewhere, right? A point at which to not act would be unconscionable? If revoking citizenship is off the table, what do you think a reasonable response would be? (I'm assuming hypothetical "objective wrongdoing" rather than looking for ways to get Elon out of the spotlight.)