I do not understand your desire to remove this fetish based on what you've shared.
You've told us that female underwear turns you on. If we stop right there I just don't see a problem.
I think you might've run into another problem bec you decided to read things on the internet bec this "fetish" does not fit what you consider the norm. But what is the norm?

Imho you're making this more complicated than it sounds or you're not sharing something else....like are you spending thousands of dollars on purchasing panties???
I'm not sure I understand I guess.