Misanthrope

A misanthrope is someone who harbors a dislike, distrust, contempt, or a general hatred of the human race or of human behavior.

This type of feeling or behavior is referred to as misanthropy. Misanthropes often disagree with other humans acceptance and consensus about reality. Although misanthrope is broadly used to refer to someone hating all humans most misanthropes have normal relationships with some people - it is broad society as a whole they feel disdain for. Misanthropic views are common among many individuals, often used in satire and comedy. True, absolute misanthropy as a personality trait is less common.