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Russians, Ukrainians, Polish, Germans, Finnish, etc are the same. I find these nations as one because we have the same origin we are one race. Niggers, sand niggers, etc have a different origin. They are different. Again look into polygenesis theory.
I thought we all evolved from the same ancestor as chimpanzees.
All people are from the same specie, we all have the same number of chromosomes.
You want proof? Look at inter-racial babies.
Nobody really can say this being sure 100%. It may turn that way that neither the monogenesis theory is true nor the poly. Humans might have some mad origin like ancient alien invasion or something. You never know...
But the monogenesis theory has shown its weaknesses. You can go a few pages back and find good articles about the theory.
Also non-same species can mate. Not really always, sometimes, actually it's a rare event. Anyways, they can.
Yes I agree that racism is very difficult problem today in society.
It seems it's very hard to solve it.
I think people need education.
They need to learn how to respect other people, even people with different race, nationality, religion etc.
Most religion teach people to respect and love others and this is good way how to fight with racism.
Daniel, I don't see it as a problem. People are just different. Some are smart, some are strong, some are both or neither, etc. This simple thing needs to be clearly understood. There's racism as long as people are different. This word also can be applied to any group, not just races.
Btw religion doesn't really fit 21st century.