Was the exact phraseology “Donald called Mexicans rapists”? If so, the “all” is a matter of reading it in — or not.
"So on immigration, Republicans say we need strong border security, and Trump comes right out and says Mexicans are rapists and we need to build a wall."
https://www.washingtonpost.com/blogs/plum-line/wp/2016/10/17/trumps-talk-of-a-rigged-election-republicans-built-that/?utm_term=.119eb728f9a7