let's say 350 million people have the means + desire to move to the US over the course of a year after the borders open. i think that's low, but whatever. how

let's say 350 million people have the means + desire to move to the US over the course of a year after the borders open. i think that's low, but whatever. how do you propose that the "delicate" infrastructure of the US can handle a clean doubling of population over the course of 1 year?