Still, hard to believe that a 2 month lockdown is enough to destroy entire economies.

Thing is that it's not only that economies just loose the outcome of only two months of money, the problem is that many businesses went belly up and won't be able to open in two months.
There will come a time, soon, where we won't have a choice, but to go to work either way of the virus situation, because that is the point where the damage to the overall economy will translate in more possible loss of life than from the virus.
When you get down to numbers, 1% mortality is better than a guaranteed 10-30 or whatever random high % number that could result from mass social unrest, wars over resources etc, no food, high criminality, high suicide rates etc. Choose your poison.