It is becoming clear, that the original definition of homosexual behaviour was correct, it appears in most cases to have psychological causes. Factors occurring during childhood have possibly a bearing on which types of behaviour are adopted by adolescents and adults.

The "transgender" thread illustrates this quite well.

There are many types of human behaviour, many have to be quite rightly tolerated, but also regulated, to prevent damage to those who participate or to society.
In parts of Scotland where we suffer a lost generation of young people, drug addiction is the behavioural problem for many of our kids.