In global crisis people won't run into a high volatile speculative asset. Also people won't even know how to do it.

The issues to enter the market are the same than 2 or 3 years ago. Too complicated for the average Joe. Unless hedge funds, pension managers, etc etc start getting into so people can invest on crypto and feel safe, nothing is going to happen.

Also remember that when there's a global crisis, people need money, so probably a lot already invested will cash out.