The cloud will not be recession proof but when everything falls it’ll be less likely to fall as much as other industries or sectors.
Given how power users are likely to be "Essential", and how businesses might scale back but otherwise avoid major changes, those demographics will only pull out past a different inflection point. It will take things being dire on a wide scale; whole companies and industries failing. When that happens society as a whole can be seen as failing.
If we do ever get to the point that "cloud fails" we should really hope for a new new deal.