The other half of the population

Half finished conversations come back to me. And they flood me wonder - what would the other other half have been like?

There was one which impressed upon me the fact that there are only two types of people - men and women. And when you decide there's something terribly wrong (or terribly distinct) with the opposite sex and you don't want anything to do with them, you're basically pointing fingers at about half the world's population.

Effectively. Its like tagging, labelling, or for that matter, categorizing and classifying. It seems like a shame to many that educated people should indulge in an act of tagging, labelling, or for that matter, categorizing and classifying. Because every human being is an individual as distinct from everyone else as you are... So?

I still don't get it.