I'm not going to define 'mental illness'. Demanding definitions for things which are clear to a thinking person is one of the ways in which postmodernists use to break down everything they want to destroy. Once they have a definition they'll seek an exception and use that to claim destruction of your concept. In short: nothing exists. Yet 'love', 'art' and 'civilisation' are all famously impossible to define.

As an Englishman with a love on English literature it's very much my business, particularly given that all Western cultures are currently under attack by Cultural Marxists. These 'variations' are just as much attacks on our culture as they are explorations of the confusion they take as their culture.

Luckily, your ignorance of what is going on in the world renders your contribution here irrelevant.