I find starting a conversation with the kid when the opportunity presents itself organically and listen to what they think about the content / subject matter and bringing different perspectives to the subject can teach them critically thinking about what they’re hearing.
The same goes for young adult books with questionable relationship examples. Making it a conversation, hearing what they think about certain aspects and bringing different perspectives to the subject works better than taking a stance against something they love.
We all love flawed stuff, we love them while (hopefully) separating wrongs from rights in our minds because we have some degree of critical thinking. We just need to teach/guide the kids the same way. It’s ok to like something while still being able to point out the wrongs of that thing.