Allow me to reassure you: liking fiction that’s by a bad person, even if it’s a really bad person, does not make YOU a bad person.

You can enjoy a piece of fiction without supporting the author or their ideals.

You having an F/O from a source with a shitty creator doesn’t support that creator.

Keep your F/O anon, and enjoy them.

If it makes you feel better you can always include your F/O in fanfiction that you know the creator would hate and be against!