Various people own cats (men, women, different ages, politics, singles, families) so I do not find this sterotype to be true. Cat is a common pet in cultures where dogs are considered dirty, or because there is no space for dogs (Japan, Korea, etc.). The parasite T Gondii can be serious, but most people do not suffer from the side effects. Cats (and humans) can get it from eating raw meat/ rodents, etc., so indoor cats are not susceptible to this. But the parasite could explain why some people own 50 cats. The stereotypical cat lady accumulates a lot of cats because the cats are unneutered and breed a lot of kittens. The cat lady stereotype also evolved from the religious prudish old maid who is always knitting, to now the feminist liberal etc. So, I don't think there is a strong link between cats and feminism.