Why do white people say Ethiopian are mixed with cacuasian, yet they look nothing like mix race people?

Yes, it happens many times, but it's not that common. Wentworth Miller is mixed race (black and white) and looks full white. Here he is with his dad and uncle.

Also Kate Gosselin's kids are 75% white and 25% East Asian and they all look at least half, if not full East Asian.

Google the word "passing." The answer is yes. And no, this is not a new phenomenon.

People have been passing as different races, nationalities, and ethnicities for centuries, before there was even a term for it.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.