Don't act like bitcoin is immune as well. The last time Covid happen, was bitcoin going up or it was going lower. It depreciated more than some even stock, many coins did -99% because of its influence on them. If today another global collapse should happen, bitcoin will be affected but may be not as it used to in the past but it will crash. The same people that has investment into stock are the people that still has money here as well and they will sell if there is a global economy collapse.
Aside covid19 global pandemic that I experienced, I haven't had any in my life but I believe that when problem arises globally, the first thing everyone look out for is food, they stock food during such times, then follow by medicine, that's the only thing that matter during global crisis, all investment will be nothing, many will even sell to cater for the family, so expect people to sell their bitcoin if we are been real to each other.