I’m calling it “threadshitting” because I can’t think of the term for this in the real word, if there even is one-- when you’re talking about something and someone makes a nasty, dismissive comment about it with the intent to derail the conversation.
I know someone who is a master of real-life threadshitting. One time I was debating what, if anything, I should do about some grading unfairness in one of my classes. He said I didn’t know what real suffering was and I should go work in a homeless shelter. Another time, I was talking about a recent harrowing experience when one of my beloved childhood pets got very sick. He said that all the money spent on vet bills could have gone to save starving orphans in Africa. I could go on, but this is more or less representative of his modus operandi. (I generally avoid him at this point, for obvious reasons.)
Have you ever encountered someone like this? If so, how do you deal with it?