So? Jews are evil because they're related to each other?
No Jew occupied my country. It was men of Anglo Saxon stock who called my people beastly and sent 2 million of us as cannon fodder in the great wars and subjugated the entire world to an iron fisted rule.
Today I'm in a relationship with an Anglo Saxon woman who I love.
It was the Islamic horse riders who killed and maimed and raped and pillaged my country for centuries.
Today my best friend is a Muslim.
You want to talk about evil perpetrated by people of particular ethnicities? Whose hands are clean?
Treat each person as an individual and not as a part of some monolith in your mind.