Just because some people are contributing to bad discourse doesn't mean that you also get permission to contribute to bad discourse. If you don't like it when people say you're going to be obsolete -- tell them! Don't hop into random spaces where no one is saying that and act negative! This just lowers the discourse quality everywhere. Very few people on HN are saying you are going to be obsolete if you don't use AI (I basically haven't seen a single person say this who hasn't been massively downvoted).