> Given the collapse of consumer demand
Consumer demand has generally shifted, online commerce is seeing a boom. It's reasonable to theorize there will be a brick and mortar consumer boom once things normalize.
> the depression-era surge in unemployment
Unemployment includes the losses the market has already accounted for, temporary unemployment and reduced hours that will go back towards normal, and the initial numbers aren't as bad as theorized (but those numbers are suspect).
> the loss of GDP
Yeah but everyone else is losing GDP too generally.
> the dim prospects of a rapid recovery in 2020
Maybe. I've been very pleasantly surprised at how effective we've flattened the curve and the overall trajectory figures are much better than initial estimates pegged them at. Many places outside of the eastcoast have done massively better than predicted, and even NYC is doing a good job of staying within hospital capacity.
Remember when this first happened we had no data, and the market corrected assuming the absolute worse. Now we're finding out that things are not as bad as the initial models showed they would be - and the initial models suggested crazy numbers - so while the current situation isn't all roses, it's generally better than anyone honestly predicted.