Apart from the interesting taboos of race and sex, there is another interesting thing I've wanted to talk about. I don't believe the left and right are recent

Apart from the interesting taboos of race and sex, there is another interesting thing I've wanted to talk about. I don't believe the left and right are recent inventions, I think it is biological. Both the left and right have their own taboos. Those taboos spring immediately into existence when a topic such as sex or race is brought up. You automatically see both sides lining up against each other. This is very interesting! We should be asking why do the left and right exist? Why is it so powerful and pervasive across all cultures and times? My intuition tells me it is some sort of regulation mechanism, but I've never seen this subject discussed before.