He didn't say that every single Mexican on the face of the earth is a rapist. But he inferred that many of them are rapists:
https://www.cnn.com/2018/04/06/politics/trump-mexico-rapists/index.html
The US has become a dumping ground for everybody else's problems. Thank you. It's true, and these are the best and the finest.
When Mexico sends its people, they're not sending their best. They're not sending you. They're not sending you. They're sending people that have lots of problems, and they're bringing those problems with us. They're bringing drugs. They're bringing crime.
They're rapists. And some, I assume, are good people.