Depends on your definition of furry.
Do you mean "I want to fuck that cat-person" types? Probably millions upon millions. Roxanne, Sylvia, Peg, Pennypacker etc. are probably some of a lot of kids early crushes.
Or do you mean "I want to fuck that literal cat" types? Probably not very many of those.
If you mean "I want to dress up like a cat and fuck that other person dressed up like a cat," honestly probably not many of those either.