It's an interesting argument because having the app connect customers means they don't have to drive around aimlessly, which almost sidesteps the problem (they still have to pull over somewhere but aren't necessarily causing traffic).
Also you do not want to give out so many medallions that owners cannot possibly make a living. Now transferability outside selling whole business is stupid.
> Also you do not want to give out so many medallions that owners cannot possibly make a living
Do you really think that some government agency can come up with the correct price and license cap using Excel magic? Of course not, most likely this will just lead to corruption and an inferior service.
Let the free market find the price. If it's not possible to make a living people won't drive. Where I live taxis usually charge whatever Uber is showing.
Homelessness? Check. Drunk driving fatalities? Check. Domestic violence? Check. Abusive monopolies on single-person transportation? Check.