4 points
I don’t doubt that some small (or not?) percentage of the population do think and act and vote this way.
The rest of us allow them to exist and breed and it will be the end of our species eventually.
1 point
It’s not genetics that makes people selfish. The genes for cooperation exist universally. Competition has a cultural origin. For example, antisocial personality disorder, in which a person lacks the usual behaviours of community building, is caused by child abuse. On a larger scale, competitive behaviour is usually caused by capitalism.