If someone hates an individual person, or several persons who are not similar in any special way, the person doing the hating might be called hateful, or spiteful. If someone hates a whole group of people based on ethnicity, race, nationality or any number of other characteristics, the person might be called a bigot.
The word misanthrope describes a person who generally hates humans.
'Descriptor' is the name for a person who describes a person.
A hater is somebody who "hates" on someone or something by constantly criticizing it.
A hater
Misanthrope.
maneater.
there is no such word
The one word that describes this person is PERFECT ...
The original word is misogynist, which, taken from Greek means "aversion to women" and has in modern time come to mean a "woman hater". Because there is no polite word for "man hater", people have taken to replacing the feminine "mis" and replacing it with the masculine "mas." So, a masogynist would be a person who has an aversion to men or in modern parlance a man hater.
A word that describes where a person is from is called a demonym. It typically refers to the residents or natives of a particular place, such as New Yorker for someone from New York or Parisian for someone from Paris.
A hater
maneater.
Feminazi