Not all companies are immune though. Besides my point is investment, in the way we think generally, may not hold good in adverse situations. Stocks will be at their lowest in a crisis, not a great hedge if you want to use them in turbulent times.

There are ofcourse assets and companies that will do well in the same period. But such investment shouldn't be the only thing you do.

I would say,

Be in a stable country>be as self sufficient as possible> invest. Not all countries will be kind to it's useless citizens.