Sounds like you're policing what other people choose to spend their time
on.  Oddly enough, I've seen comments like yours countless times when the
subject lands on sexism, racism, homophobia, and so on.  What I find
especially interesting is that these types of comments are louder when
it's a subject that isn't "generally recognized" to be hurtful.  In my
own lifetime, I've watched the discussion shift significantly when the
subject is homophobia, and I currently watch appalled as fatphobia is
still considered acceptable (with constant deprecatory comments similar
to yours).