Even more so, if I think it's "bad" I might also consider it detrimental to the music world, and even to society at large. Music is not just an isolated consumption, it's also a social force.

And people can still be able to differentiate between stuff they merely don't like (taste) and stuff they consider detrimental to music in a larger way. In fact they might even like the latter and still consider them detrimental (e.g. I find some commercial pop tunes catchy, but consider them a bad musical and societal influence).