Most of us have heard or seen the saying:
Strong men make good times
Good times make weak men
Weak men make bad times
Bad times make strong men
These authors theorize we move between cycles every 20-30 years. I think that it is going something like this;
Good times: 1950-1975
Weak men: 1975- early 2000s
Bad times: early 2000s - early 2020s
Strong men: early 2020s - ~2040
Humans tend not to learn from others mistakes or from history. I believe it was Reagan who said that we are always one generation away from losing our freedoms. While this is an unfortunate fact, hopefully when the Q stuff goes down, it is so biblical that it lasts beyond 2040. We have to break the cycle of taking prosperity for granted.
This country is the greatest that has ever existed, and we deserve more.
We are better and stronger than these subversive commies.
WWG1WGA
I read something many years ago that may apply, no idea where I read it, but it made an impression on me. It said that in times of extreme stress, a pregnant woman exudes certain hormones that make the male child more calm/less likely to fight (in an effort to stop the ongoing conflict) and fewer boys are being born. In times of calmness, the normal hormones go into the male child creating one more manly/likely to fight and protect. This would create cycles, but it doesn't seem to match the ones you have mentioned. Makes me wonder if along with soy in our foods, the stress in pregnant women is creating the soy boys.
I don't doubt something like that is possible. As an evolutionary psych / anthropology fan I will look further into this.