Oh come on! Now you're just being melodramatic. Keeping a watchful eye on someone because of ethnicity is not at all the same thing as asking someone not to obscure their face in public. There are practical reasons for it.
A woman wearing a veil over her face (how long has it been since people did that in every day life?) and a man wearing big dark sunglasses could be subject to the same thing because it is more or less the same situation. You can't really ask a kid who is wearing cargo pants to take of their pants (or
would you?). In that case, you would just be watchful and make sure that nothing is slipped into one of their many pockets. The woman in a burka? If I'm not mistaken, they are trying to get rid of those in a lot of countries in Europe for pretty much the same reason.
I really don't see why any store would be wrong to ask someone to take off a hood. Like Ferret said, I don't see why the average
law-abiding citizen would have a problem with that...
And yes, I guess I do know you. Unfortunately.