A person who hates or has an aversion to being around kids or chooses not to have kids or does not offer charitable support to kids groups.
Joe is kidcist who cannot stand to be around kids anywhere at anytime in public like restaurants or the public library having to listen to their crying and screaming or dealing with their unruly behavior while trying to eat or concentrate. They make his nerves twitch as becomes paroxysmal and irritant.
Kidcism is on the rise! Kidcism! Kidcism! Kidcism!