You're almost 100% backwards on this Pat. Now, the one point you made which does not lead to the conclusion you are implying is that "in continuing to use thug at this point we participate in the construction of racially charged language". Trying to
whitewash the difference in types of anti-social behavior with the obviously arbitrary (and sterile) "criminal" label is an excellent example of the sort of ridiculous make-work pedantry that gets pushed by the PC outrageratchet.
Smashing, firing, and looting has been
thug behavior for years regardless of race, and is a specific sort of subset of anti-social behavior, which at any given point and time may or may not be criminal. That someone wants to object to thug based on race
now, to do a sort of "take the word back" move is laughable, and there's no reason for any intelligent person to give way to this linguistic gerrymandering.
Edit: "Muh freebies" is meme-sourced from "Muh roads", which has generally been used to denigrate typical conservative responses to libertarians, not blacks. Besides the mayor, Obama seemed pretty comfortable using thug in this context also.
Edit#2: Apparently there is quite the lineup of "Muh" memes.