You also said I'm not allowed to use the metrics of actual intricacy in composition, or musicianship to judge so I chose other ways to show how and why some art is just better than others. If you're asking me to tell why specifically a bubblegum song that somebody likes by Person A without taking into account musicianship, lyrical content, cultural and historical impact, and tell you why through the use of none of these metrics typically used to judge music in the first place. In a vacuum as it were I don't see how your question is fair.

I have so far used popular bands who have written poppy, simple songs that people enjoy and showed that these are usually placeholders and attention grabbers for the band to create music of actual value after the fact. Octopuses Garden for Eg.

Taste is informed by experience. Comparative criticism is more valuable from someone who appreciates the wider spectrum incorporating all of the factors I just listed than someone so narrow minded as to only listen to top 40 and nothing outside their comfort zone. The room is bad because nothing about it is actually well done but it falls into that strange netherrealm where rocky horror is the "so bad its good" I'd argue some music loves there too "baby got back" for example.

People are entitled, as I've said, to like what they like and nobody gets to simply tell them that they're wrong. But people who don't understand the significance of the history of the art and what shaped it are as unqualified to judge merit as people who judge today's growing generations in a vacuum.

I'll return to the Beatles for a moment. There are lots of people I know who don't like them. Don't like their sound or what have you but when pushed will almost always admit the impact they had on music. These things matter. Art doesn't have to be universally loved to be great. The people who judge it so use a lot of metrics but in a lot of ways art tells its own story and carves its own place.

Personal opinion in spite of convention is okay, I won't demonize you for it. But that doesn't mean I agree. The funny thing to me is you outright said you knew the band you liked wasn't good. But it sounded good to you. Even bad art can speak to some people, but great art speaks to lots of people.