Don’t do that. Grrmany did. Did not end so Well.

Lol. Yeah. Shut up. Its not. Proven not.

Yes. You can even use a swastika if the intend is clear. For example a figure throwing it into a trashcan.

I’m not a lawyer, but the word “Heil” ist not forbidden and Also its a picture of something relevant that happened. So in my opinion the Art itself is not illegal. Only the projection onto the building.

Someone correct me if I’m wrong.

Freedom of art in that regard. The only illegal thing might be to project something to the factory