I've wondered about the "microaggression" thing since I first heard the word. My SJW warrior friends worked really hard to convince me that it was a real thing. That it caused real harm.

The only one I think I "got" was - I have a friend who is physically shaped differently. I work with bodies, and my gaze might tend to linger on a body which is different - thinking about how things work in that structure. She informed me that this is offensive. I think she's right. Curiosity can be a microaggression in the disabled.

I can't come to a clear conclusion here, only that "microaggression police" is about regulating another minor point. Crying is not an emergency.