I ll start by saying that everyone has their quirks, and yours is certainly not the strangest one I ve heard about. You probably just find qualities or features that the character/s posses to be attractive, and there is nothing wrong with that, and you are not the first (or last) person to feel the same. There wouldn t be so many animal/human hybrid fandoms on the internet if that weren t true.
Those who have mocked you most likely have their own peccadillos, and only wish to make themselves feel normal by putting you down for yours. But fact is, these things are normal! So don t try to find an answer for it or wonder if there is something wrong with you, as there is no answer and there is nothing wrong with you.
As long as you re not hurting anyone or anything, I say live and let live. Sit back, relax, and don t worry about it.
Now, if you were wanting to get plastic surgery to look like a fox, I d be a little concerned. But what you have here is completely fine. There are plenty of things to worry about in the world, and this is not one of them.