RichThis is where the education kicks in. :)
It's entirely possible you may be overthinking it. Do remember that it's possible for folks to be insensitive without being deliberately racist.
Besides there are many sides to every story, particularly- all those on one side who are advocating a position for all their various and diverse reasons, and all those who are interpreting it and who it affects and who it's aimed it.
What you're doing is taking the side of the few ignorant people who wave stuff about without knowing any of the possible implications. What I'm doing is enumerating those implications and considering the much larger groups who will also be aware of them as well as the meaning of those implications in the world we live in in this point in time, in our society with all the particular things that are going on right now.
RichIt's not though, is it? That's just not logical. You're talking a general classification. The example you're applying it to though is something specific. Which means it's a nonsense :)
Which is what we call being politically incorrect due to racial insensitivity.
If you were saying that there was a new MacDonald's promotion where they offered all black people free watermelon and fried chicken, then that would be a just a little "politically incorrect due to racial insensitivity", but if you're asking a black friend if they want some because you're both hungry then it's nothing of the sort. If they get offended then that's between you and them.
I'm not going to go into all the ins and outs of how you talk to friends and strangers about various topics on a personal level, but generally you'd be the person most qualified to know how you'd do that best and what you really mean in each instance. ;)