Not so much another brick in the wall
As continuing the wall to keep out Mexicans right around the US.
Trump has already built the wall in the North to piss off the Canadians, made tariffs against the EU and China , extended sanctions against Russia and a good part of the Middle East, thinks Africa is a shit hole and does a good job of alienating most of South America, India is doing OK with China and Russia, Turkey may well be on it's way out of Nato so he's well on the way to making America great again.
No idea what he is going to do to piss off Arctic polar bears and Antarctic penguins but will definitely come up with something.
Louder! We can't hear you behind that wall.