you can judge someone by the company they keep
Do you "keep the company" of people on social media though? I have connections to various social media groups, and some of the members are totally Librarian: from "all disease (including cancer) is caused by parasites and can be cured by drinking bleach" to "rockets don't work in space and that's why the ISS doesn't exist. And we never went to the moon, btw"
I don't personally know these nutters, and the only thing I have in common with them is a passion for photography/art/politics/cookery/whatever.
Does that mean my character should be judged by their opinions?
Well, obviously in the US, yes, but, y'know, in the real world?