Being critical of media you enjoy doesn't (necessarily) mean you can't enjoy it but it does make you more aware of things you'd like to see more of in the genre so you can support those projects when/if they come out, so you can enjoy things even more.
Also, I know that learning happens at any age and the second best time to learn something is now, but if you detect a certain amount of frustration from non-white people on the topic of how to consume media you enjoy critically, it's because many of us have spent our whole lives in a society where this is a necessity, not an option. We have spent decades learning how to do this because we had to in order to enjoy media at all, because any representation we had was either nonexistent, barely functional, deeply flawed, or outright harmful*. The choices were to either learn to be able to critique media you enjoy, not enjoy anything, or self-hate/sweep everything under the rug (this is the one media conglomerates wanted most).
I'm speaking mainly of the US because I grew up here, but it applies to other white-majority places as well. There's also the fact that the exportation of media from white-majority countries has an outsize effect in many other places around the world, especially former colonies.
I can understand and have a lot of empathy for people who are newly struggling with how to do this. But I have much less empathy and energy for people who can't figure out why they need to do this.
*for those who think the solution to all of this is "just make your own" (by going back in time and having media-producing money I guess), shut the fuck up, I know you are not arguing in good faith, 2 seconds of thought should help you in your life