The Greeks in ancient times had great philosophers and were an advanced civilization in many spheres. Yet they believed in many gods. Why do you think? The ancient world believed that the earth was flat and anyone who said differently was a heretic punishable by death. You had great thinkers in that period.
You can now go to a doctor and declare that you are a man in a woman’s body and demand an artificial pegina. Hack there is now a case where a man is demanding to keep his peenis and add a pegina.
Nothing is real anymore. Lots of theories but no persuasive evidence. We were fish, we were monkeys. Maybe we were aliens. Theory of evolution.
The fact is that we are still animals and vicious ones at that.