Hmmmm.. if crypto disappeared tomorrow, it will shake things up oo. For those who have invested a lot of time and money in the space, it would mean loss of assets and income streams, which will be hard and almost impossible to recover from. People who rely on crypto trading, mining, or staking will need to find new ways to make money. Still though, daily life for most people might not change much, since crypto is not yet fully mainstream, the impact will just be on those who built businesses and communities around blockchain technology, as they would need to pivot really fast.
Side thought though;
If i'm being honest, to summarise and based on my intrusive thoughts, "There might be war"