I'm saying the numbers are so astronomically off that there is no viable path to profit without public subsidy, for any theoretical future system, big or small.
Their path to profit is the Chicago airport loop, which is proposed to cost a fair bit more and have much more consistent ridership. This is a pilot project, a technology tester.
There is some disagreement among experts that this project is ever a path to profit, given that the projected construction cost is ridiculously low.[1]