[roughly]

Oh I mean I don’t care if the teacher is for or against school shootings, I just find it interesting to have subject matter experts share their knowledge and give their opinions on things that impact their field. Some people just don’t take it well when those opinions don’t line up with their own on contentious topics.

[bell-cot]

How is it "interesting" for an elementary school teacher to be against school shootings? I'd bet I can find some carpenters who are against smashing thumbs with hammers, but why bother?

Are you calling it "Activism" when someone shares the opinion of 99.9% of the population, and spends 0 time advocating for that opinion?