>Ridesharing fares are obviously underpriced … and if they were raised 30% to make them sustainable, it becomes "not worth it" for a good chunk of people who use ridesharing as a supplement to car, bus, transit, etc.

Though right now seems like a pretty good time to raise prices to the degree that they haven't already. I suspect that for some time to come those who can afford to do so will pay a significant premium to avoid public transit.