I don't know. I thought the whole concept of marriage was to prevent bastard children from coming into this world. If you're not going to reproduce, maybe you don't need to be married.
If you're a non-believer, or a Muslim, or Buddhist, or whatever, a manger scene is nothing more than a prop. Why would anyone object to a prop? It's certainly not so overwhelming that you should question your belief.
"Trump" looked like nothing more than a logo. Like a little alligator or dude riding a horse. For all I know, Trump made that shirt. If so, you know he put his name on it.