Imagine your parents give you a 10 dollar loan to start a lemonade stand.
It costs you $3 to buy the lemons, sugar, water, and cups to make 10 cups of lemonade, that you sell for ten cents each.
In the first day you spend $3 and make $1. In the second day you spend 3 more dollars and make one dollar. In the third day you spend $3 and make another $1. In the fourth day you again spend $3 and make $1. At this point you now have $2 remaining.
On the fifth day a miracle happens and your mom gives you another 10 dollars, so you make and sell more lemonade. But you're concerned now so you ask all of your customers why they're buying your lemonade. They tell you that the only reason is the price, it's such cheap lemonade! If it were 2x more expensive they might still buy it, but certainly not at 3x.
And then what happens 4 days later?
Uber doesn't have a business model, they have a house of cards. They can't make money continuing to operate the way they do now, fares don't cover their operating costs, even if you factor out costs of "building" or "expansion". Their paths to success are either forcing everyone out of business by undercutting them and causing everyone else to go bankrupt, after which they can raise their prices back to the old market rates; or, somehow managing to get self-driving taxis on the market in the next 5 years so they can take driver compensation out of the equation.