Just giggled as my last meme mentioned trouble with displays and appropriately, a large chunk of the replies were “well MY displays work just fine!” (And charmingly, many were thoughts of things to check, other distros etc. It’s a very kind community, though that may also be the fediverse.)
My theory is they want to help and believe themselves capable but when someone asks a question that they don’t know the answer to, they either have to admit to themselves that they don’t know and aren’t as capable as they thought or they have to find a way to blame the person asking for help. Mentally the path of least resistance is to just blame the user and it’s also not exactly false to say it’s the help seekers fault, it’s just a bit of a dick move and unhelpful.