The US can't easily absorb so many people unless they're dirt poor and willing to live 20 to an apartment. That many middle-class people will make the traffic

The US can't easily absorb so many people unless they're dirt poor and willing to live 20 to an apartment. That many middle-class people will make the traffic situation far worse, because the US absolutely refuses to build more densely and build more public transit to make cities walkable. It's not a good place to live at all.