The “exit” of American implied by the statement “America is back,” was actually the American worker no longer paying for the socialist benefits of other nations. What Biden is saying is, the American worker is more than happy to pay for German’s early retirement and free education and medical for foreign citizens.
Frankly, I’m sick of people saying America should be more like Europe. Europe is like Europe because Americans are paying for all the stuff.
Even worse, the true cost of the high taxes of European socialism was originally masked but now can’t be ignored: half a century of negative birthrates.