The REAL reason why people ACT like the above isn't so much b/c they're ignorant or stupid.. Their foolishness is directly related to SIN and a life without God.
The Bible says that because of ignorance, people perish.
People and their societies are RESPONSIBLE toward God. As a parent, I'm accountable to God to teach my children God's wisdom through God's Biblical moral law. And people and societies as a whole, are responsible to God to construct, teach, foster and enforce justice, morality, peace and wisdom.
It's impossible to do that when SIN gets in the way.
As soon as SIN gets in the way, people begin to start watering down God's absolute moral law. They begin saying in their hearts what Satan said in the garden (Book of Genesis in the Bible) "Has God really said...". When in fact, what God "said" has always been direct and consistent throughout the Bible.
As soon as the problem of SIN comes in, it corrupts morals, thinking, judgments, etc. It's nature is to try and replace God's authoritative Word with people's fallible and fallen reasoning.
Laws and morals are watered down, moral judgments become relative, and before you know it, .... as the Bible puts it, people begin "to do what was right in their own eyes" (Genesis).
This is a degenerative thing whereby, the process of SIN; deception, foolishness, lawlessness, darkness, evil, etc. ends up in total destruction.
But by God's grace, He can bring us BACK to His standard, if we repent and turn back to Him. Having then turned back to Him, we can then BEGIN TO SEE (John 3:3) God's Truth, God's moral law, God's plan, etc.
Because we were all once "foolishly" doing what "seemed right in our own eyes" before God opened up our eyes.
Then focusing in on His wisdom, we are less susceptible to foolishness and worldly deceptions.
The "lost sheep" is directed back to the fold, and is now within God's intended order and protection.
