Indeed. And in America, the intent of an illegal flying a Mexican flag above an American flag is quite clear.
I was driving by a gang of manuel laborers one day and noticed that one of them was wearing an enormous sombrero. Now, they don't even wear these things in Mexico anymore, so it was clear that this guy, an illegal, working on a busy street in an American city where we've (citizens, not the mollycoddling politicos) have had it up to here with illegals, was thumbing his nose at us. I noted the name of the company, called their office and asked whether all their guys were legals...noting that one was wearing a sombrero at that location.
Now, maybe he was fired, I dunno....they all look alike to a bigot like me, but the next time I drove by...no sombrero.
Tokie