To be fair. I agree she could and should have used better phrasing. I can also understand people like Sanders for criticise her. Maybe she even was bigoted 20 years age when she said that, or maybe she still is. But you have to interpret her words extremely uncharitably to infer that.
Here we are trying to figure out if here comments about gangs could be problematic while comparing her to Trump, who said this about mexican immigrants, not just mexican gangs: "They’re bringing crime. They’re rapists. And some, I assume, are good people!".