I saw this trend even a decade ago, doctors become extremely hostile if you ever so much mention anything outside of what they know. Multiple people have told me this, well before covid ever happened.

I remember as a kid the doctor told my parents to drink nonfat milk, and tilt my head up during a nose bleed. Of course, we later find out they were completely wrong, and I bet if you questioned them back then even with facts they'd get hostile and angry over it. Exactly the kind of problem that should not exist in ANY profession! I know in Engineering there are always debates and mistakes made, but most engineers will explain to you what and how and why they are doing something a certain way, rather than wave around their degree at you, because no matter what, if they are wrong, it will show. Of course, there is still a time and place to wave around seniority, but not at the start of every conflict or debate! Debate the facts first, then use the seniority or experience argument.