Contraception is turning us into a nation of morons.
It works like this:
Reducing the rate of childbirth in an overcrowded world is a logical and sensible step to take. So, logical and sensible people agree, and use contraception. Idiots don't.
Therefore, while the logical and sensible people produce few or no children, idiots continue to breed like a swarm of flies who have settled in a Viagra production facility.
The intelligent dwindle. The thinking-challenged thrive. Many of them become politicians and continue their policies to deprive the nation of thought. The unthinking will vote for who they're told to vote for, and will while away their pointless lives watching reality TV.
The future is bleak. Anyone with any intelligence will not want to subject a child to that. So the intelligent dwindle further. The neuronically deficient won't care because they don't know how.
I have seen the future, and it makes no sense. The only good thing about it is that I won't be there.