The reality is, a business doesn't have the right to say people can not assemble at someone else's property that's near their business. If the park owner (not the nearby business owner) wants to kick protestors out, that is up to him. You don't get to decide who's rights are more important just because you disagree with their message. And by the way, I agree that a $20/hr minimum wage is a retarded idea but that is irrelevant to the rights being discussed here.