Since the financial crisis the US economy has kept on trucking, while the EU has stagnated. This isn’t all because of the euro, but it’s definitely a disaster and I think it is reasonable to hold the euro at least partially responsible.
I wouldn’t hold them up as a shining example of “good” or “we should do the same”.
Even in recent decades the US has done much better economically than the EU.
The Euro crisis was a disaster for multiple countries.
There is a huge difference between EU states and US states.