There are some who think we are not far from that scenario. And if that is true, then we ALL have a LOT to worry about!
After rethinking my previous post I must say that a person should have the right to have whatever they want on the sign they paid for as long as it is verbally legal (no 4 letter words, etc.) That is freedom of speech and expression and not as bad as holding up a sign during a political speech telling the politician to "go home". Let them market to the clientele they want to. If they lose business because some people cannot read their sign, oh well! They made the choice. However, I still stand by my position on teaching English as the primary language in our schools. That is absolutely the only way it should be. And if someone doesn't like it give them a ticket "home". I will gladly donate the first one to get the ball rolling. But if they come back into this country they have to abide by our new rules - no exceptions!