So. As a Stone Mason …I sorta feel obliged to point out that, sorry, that is a BRASS sign.
Good news is it’s almost certainly been attached with 2 shortish pegs into the stone and some chemfix, epoxy or the like. Also a good chance there’s no pegs at all and it’s just epoxied straight to the stone…
Either way, crowbar will, hypothetically, take that right off with no issues.
That’ll trap vulnerable people in the States, potentially to be lynched. Much as I would love to support a blanket, don’t allow crazy out of crazytown, there’s sane people trapped there that should be allowed to flee.