God, I needed to read this today. I spent an entire family dinner last week explaining why the book I'm reading 'isn't that serious' and immediately felt sick about it. My mom didn't even criticize it - I just automatically apologized before she could. And you're right that this is absolutely learned. Somewhere along the way I decided that my enjoyment needed caveats, needed footnotes explaining that I KNEW it wasn't REAL literature.
What pisses me off is how this works as a control mechanism. Because now I'm policing myself, the gatekeepers don't even have to do the work. I've internalized their judgment so completely that I do it for them. And yeah, some of this is general insecurity, but some of it is absolutely cultural - there's a specific hierarchy we're all taught to believe in, and when our tastes don't align with it, we feel deficient.
I'm going to try something different. When I catch myself apologizing for what I love, I'm just going to... not. Not because I think all taste is subjective or whatever, but because my joy doesn't need permission or explanation.