When people say "You don't dislike X, you've just only had bad X"

I've seen people say this about everything, seafood, coffee, beer, anime, music genres, etc.

It's just dismissive and gives off an "It's impossible for someone to actually dislike my favorite thing" attitude. It feels like they're gatekeeping hating on something.

I hear this a lot personally with seafood. Everyone always tells me I just haven't found the right place yet, but I've tried about a dozen places in multiple different cities and didn't like any of them, so maybe I just actually don't like it.

If someone doesn't like one of my favorite things I don't force them to try it in 20 different variations until they're worn down enough to act like it isn't so bad so I leave them alone. I just accept that people have different preferences.