For some people might say something like that will happen, but maybe there will be a way to deal with inflation without having to run to bitcoin, inflation has always existed even before bitcoin, and that problem can also be solved. we just don't know for sure how it happened. CMIIW
I don't think to conclude that the entire countries in Europe will face inflation because those countries are not 3rd world countries. They can surely find some way to solve it and be back to normal. Just as you said, a major economic crisis has happened in the past, where they faced more problems than this one. But right now, they have some good opportunities to choose bitcoins whenever they felt the recovery of their economy will take too long.