thoughts bordering on the absurd

No! Please! I’ll tell you whatever you want to know!” the man yelled.
“Really?” said Vimes. “What’s the orbital velocity of the moon?”
“What?”
“Oh, you’d like something simpler?”
― Terry Pratchett, Night Watch

There are societies, ancient societies, where feeding on fellow human beings was no frowned upon. If they went to war and had prisoners, they would roast one of them and eat not really as a regular source of nourishment but to show their revenge. In 1972 after the Andes flight disaster, survivors had to eat their dead colleagues to survive or die. The question then here is, why do we are we so appalled at the thought of eating one of us?

Why do we wear clothes. I mean, we leave some of the most delicate parts of our bodies, like the eyes, ears, nose exposed?

Have all societies across all ages been monogamous? Why has custom/ tradition put us in a cage where divorce lawyers seem to be doing booming business?

This post has been unnecessarily long, the only question I wanted to ask, is why do we continue to fight against our natures most times living very frustrated lives?