Here's an old left-wing chestnut we haven't seen in a while. Take two completely unrelated things, pretend they're kind of the same thing thanks to similar words, and use the unflattering comparison to scream racism at your opponents. It's right out of the DNC playbook, and it's just as ridiculous as it always was.
This time, the example comes from Dick Durbin. Despite denials, Durbin is 100% sure Trump said "shithole." He's also sure that the term "chain migration" is totally racist.