2. Even if the pandemic would end in exactly 6 months, no one knows whether consumers, after having lost their jobs, will have the money to spend on such a "luxury" like rides. It might take 2 years for consumers to fully recover from the money lost.
3. Everyone realized they actually don't need that commute, so chances are that car traffic, in general, will decrease, because people who realized the can work from home will do so more often.
4. Similarly, pop-up bike lanes are popping up everywhere, with people switching to bikes (at least here in Germany), so you could argue that permanent mobility shifts will happen.
5. Game theory: If a legislation allows for mass firing like those, you have to justify NOT firing during bad times like these, to the stakeholders whose VC money you're burning, especially since everyone else does it. You'd lose out by not using every one of the tools your legislation gives you. In other legislations (most of Europe), such firings would simply not be possible and couldn't be considered as an option to extend runway.
You use the word "withstand", which carries a very positive meaning, and the idea that the company will "come out stronger" after that.
Sadly, this concept doesn't exist for a company, especially not VC funded ones. There is simple not enough incentive to keep burning VC money, especially when your margins are low, you're not profitable, and the whole game is to take over the market, or go home.