It doesn't matter who is doing the "price dumping" or what their motivations are.
The effect on society is equally good or bad no matter who is doing the dumping or price gouging.
Replacing a conglomerate of public local services, beholden to voters, providing essential infrastructure, with single national private monopoly seems like such an obviously bad idea I don't understand how this conversation is taking place.
Maybe we should be arguing in favor of how to make public transportation more competitive in some way, or how to increase diversity of private options, but the idea that we should just hand our national transportation infrastructure over to Uber is just crazy.
Between this and arguments against net neutrality (when we should be forcing more competition onto ISPs and increasing public ISP options), lately I feel like Americans are living in some delusion about the role of the private sector in society.
And if that private monopoly ever stops being better, local organizers can make their own competing service. Or just go back to the previous system.
You can say, well, the pie is fixed and it's just a matter of who gets a bigger of slice of the pie. Consumers or VCs. Is is it equally good to "society" if consumers get a smaller slice of the pie when the private company charges monopoly prices and their owners benefit?