In theory you are right and I would agree, but unfortunately we live in a world where it's not immediately obvious to everyone that women, people whose skin is

In theory you are right and I would agree, but unfortunately we live in a world where it's not immediately obvious to everyone that women, people whose skin is black, homosexuals, trans, etc are normal people who deserve same respect that anyone else, and for those people (for which it's not obvious), it can be useful to be explicit what "other people" means.