To serve a common gaol, some people will have to be sacrificed. People has been doing this all the time, capitalists, communists. They has to excute undesirables.

• 就算进化论是对的，我们现代人和黑人白人棕色人都不能混血，就像黑猩猩不是我们的祖先吗，我们也不能和黑猩猩混血一样。