That's a disingenuous transcript. "They're rapists" is much more likely to be, "their rapists". And it makes a big difference. (as in, "...they're bringing drugs, they're bringing crime, their rapists.")
In other words, they aren't sending their best, they are sending drug dealers, criminals, rapists, etc.
That's completely different than that transcript's implication, which would be like saying, "they aren't sending their best, they are sending their drug dealers, their criminals, and all of them are rapists as well."
Unless you aren't a native speaker, I'm inclined to believe that you are being willfully disingenuous by spreading that the latter was what he meant to say.
Trump has enough insanity that no one needs to make up stuff to make him look bad.
This is just like the other stupid "bigly" meme. Even linguists have had to weigh in to agree that he was saying "big league" not bigly. Again, his grammar and syntax is elementary enough that we don't have to make crap up.