Like, say we assume it's true: There are 340 million people in the US. That's less than 1% of the current population leaving. I really doubt anybody would notice much of a difference.
Don’t be so hard on yourself, truly. What if every US state lost the equivalent of one Burlington, VT? How much would you expect traffic, housing, lines at the grocery store, to change? It’s not easy, even though 2M people is over the total number of men drafted into Vietnam.
Like, say we assume it's true: There are 340 million people in the US. That's less than 1% of the current population leaving. I really doubt anybody would notice much of a difference.