We all know the story about Greece. C’mon, who would want to face those Spartans? Wouldn’t you rather move to say, Italy instead? I mean 100 held off an entire foreign army! What was going on here? Let me guess. Greece grew, and then entered a period of challenge: fight and expand, or implode. As the population grows, and becomes more liberal, there is more illicit or unsupported sex, and this leads to unwanted children. These unwanted children (monsters) are exploited- placed into the military, abused by people sexually, etc. Their numbers grow, and finally society decides to acknowledge them- but their inclusion into normal society results in a rage against normal society that spawned and abused them. As they gain power, they begin a phase of destruction. This is more awesome that one might think, after all they are in the military, and they have all the big weapons. They might be neglected children of the well-heeled and wield great authority- say in banking. They destroy religion, and attempt to destroy government. Really, it is a biological urge – a rage – resulting in great destruction.
In the aftermath of this destruction, there is a rebuilding phase .. the regrowth of hetero-culture, the subsidence of homosexuality, and once again, it marginalization.