Earlier quoted context omitted.
Neither Uber nor Lyft is currently profitable. They can't truly be said to be winning a market competition until they're not effectively running on subsidization. Additionally, until more cities implement congestion pricing, they benefit from a negative externality not being priced in.
Neither are the nationalized public transport systems they're competing against.
Ride-hailing services don't have this particular problem. They only need to serve based on rider demand. Yet at this moment they do rely on subsidies by VC money.