Ultimately, you can like or dislike any character for whatever arbitrary reason. It's neither activism nor a moral failing, don't let the internet convince you otherwise. On the other hand, if you consistently find yourself lacking any interest in the, e.g., female characters of the media you engage with that may be a sign of some unconscious biases you need to examine.
You say "be aware of your biases" once and all of a sudden your notes become filled with the most un-selfaware people on the whole website tripping over each other to justify themselves.
