i like the phrases "it's not for me," "it's not my thing," and "i'm not the target audience" because they're the most concise way to express "this thing that you enjoy has merits but idgaf about it" without being aggressive
This is important and it is also important to practice letting people have opinions (and criticism!) without taking it personally or acting like its an attack against you. It's easy to think "I like this thing so when someone doesn't like it that means they don't like me or they think I'm wrong" and then get RSD about it and lash out.
Practice not taking opinions personally. Being polite is one thing but no one wants to feel like they have to "walk on eggshells" around you because if they say something other than "it was perfect and I loved it" you're going to blow up in their face. People will simply stop trying to engage with you.
