There's literally no biological difference between races aside from the amount of melanin in the skin, and a lack of melanin puts people at a greater risk of sunburn, heat stroke, and skin cancer. And historically, white people have only ever been good at cowardly violence and exploitation. We don't build anything, just subjugate people of color to do it for us. Many of our "inventions" were stolen from non-white cultures.
So. If you really want to improve the human race we should stop breeding.
Okay, that's not entirely true. We should stop breeding with each other. It's basic scientific knowledge that genetic diversity makes a species stronger. We know this is true for humans. Inbreeding produces a much greater risk of genetic defects. If we white people were at all smart, we'd breed our inferior skin out of existence.
Not that we deserve the affection of people of color. Being inferior as we are.
If your way of thinking were actually based in fact and logic, white supremacists, that is where it would take you.