It's true that the current measures put the economy on freeze mode but really even if businesses are closed down temporarily, no assets are lost. Even if the stock market contracts sharply, after this is over the planes are still in the hangars and the restaurants still exist.
It's obviously not a good thing but I'm not really as pessimistic medium and long term. The crisis will compress prices, it'll devalue assets but the flipside is that after this is over waiters will be rehired, someone is going to pick the airlines companies up, there's no value destroyed here, just ownership shifted around. The bull run had to come to an end at some point for some reason and the aftermath may even equalise generational inequality to some degree.