Loser, I agree with you about sex. Repressing it only makes it go underground where it may surface in other ways.
In a broader light...the problems may be a result of our not being willing to consider the brotherhood of man.
If we think a person or a group of people as "other", then it is a short step to the use of force.
About Oz...I was confused about it too some years ago.
Oz = Aus (Australia).