It’s ok to like things. In particular, it’s ok to like stories, and it’s ok to talk about liking them. It’s also ok to write things like headcanons, fanfic, and happy rants about how awesome your favorite character is.
Every story is problematic in some way; that’s not necessarily the most important thing about a story. Which things are and are not dealbreaking is deeply personal.
You don’t have to earn the right to like things. In particular, you don’t have to listen to endless commentary about how the thing you like is actually terrible. You don’t have to talk about it actually being terrible every time you mention the thing.
It’s important to be considerate of others and not try to pressure others into liking the thing you like. Just as it’s ok for you to like it, it’s ok for other people to find the problems dealbreaking.
It’s ok to like something. It’s ok not to. It’s not ok to be a jerk about it.