I like that idea. Reminds me of the people that bought a house across from Westboro Baptist Church and painted it with gay colours, put up a gay flag etc. Good for them and great way to counter hate speech.
But in general I still disagree about business open to the public (vs. private clubs etc.). The ability to run a business and be taxed advantageously is something that communities grant them in exchange for reciprocal favours. One is accommodation. Now if a community wants to change those rules fair enough. It could even say so whatever you want but with no favours from us. But let's see how many business want to keep running if they get zero favours from the government. We'll just go back to individuals working for themselves and not collaborating on anything. Of course now we have gone to the extreme of corporations and their owners running the country so that ain't ever going to happen short of mass rebellion by we the people, and a very large number are to dumbed down and brainwashed to ever consider doing anything their corporate overlords don't bless.