No grounds exist whatsoever to stop the mosque legally or constitutionally, period. AllieBaba, a fascist of the far right, is making a claim without any support. Let's see it, Baba Looey.
So, if the left isn't shrieking that it's unconstitutional to protest the mosque, and the right isn't insisting that the government prevent the mosque from going up...
why does the left keep bringing the constitutionality of the situation up?
I know why. Because they're attempting to squash the voices of the protesters. The protesters aren't saying that the mosque builders don't have a right to build....and yet the left continues to say it's "unconstitutional" to prevent it.
Just as the idiots accuse the protesters of being a mob and "attacking" the idiot who waded into their midst, cursing and posturing. Even though nothing happened; one guy got in the idiot's face and three stepped forward to prevent violence. Big whoop.