Critical thinking is important, charge up your bullshit-ometer. There is a lot of it around and it has really got to me recently. Folks with power who appear wilfully ignorant. Such communities are not safe. Disconcerting.
I hate playing the upper hand of “I am qualified in X” because really we should talk about stuff and qualified people can have gaps in knowledge or fallacious arguments. But sometimes when someone is spouting nonsense it stops them in their tracks. Recalling a few such occasions.