"Hard way", sure; just don't count on the "learning" part.
I'm a British national. When I left the UK in 2018, people were still talking about Dunkirk like it was a British victory rather than a rolling defeat whose only (even then partially) successful component was the final evacuation; about WW2 like it was a simple victory rather than a Pyrrhic victory; and about the Empire like the end of it was the UK's choice.
Americans believe we're exceptional. The mere idea of copying Europe is dead in the water before you can explain why it's a good idea.
You can always count on Americans to do the right thing after we've tried everything else.