I actively avoid the subways as much as possible, especially in the summer when the stations are uncomfortably hot/humid. I mostly walk, ride Citibike, or take Uber/Lyft. Luckily I'm able to do this because I live reasonably close to my office in Manhattan.
Uber Pool has been a godsend because it's so cheap. I can often Uber to/from the office for about $.50 more than the price of a subway side. Granted traffic in the city is horrible so it's not all sunshine and rainbows - my Uber Pool today from midtown east to west of Penn Station took absurdly long due to standstill traffic, but at $2.03 I'm not complaining, and I'll take any excuse to avoid the subways.
https://www.nytimes.com/2017/02/12/nyregion/subway-complaint...
https://www.nytimes.com/2017/06/05/nyregion/subway-delays.ht...
https://www.nytimes.com/2017/05/31/nyregion/why-is-subway-se...
https://www.governor.ny.gov/news/governor-cuomo-challenges-m...
Decrepit I'll give you, and even a low grade, but failing?
From Wikipedia:
2016 subway ridership: 1.76 billion = 147 million per month
2016 global Uber ridership in October: 40 million
Not the same league.
The subways could improve, but I prefer them (and walking) by far to taxis and cars. I guess I just don't have experience since I take maybe one or two taxi rides a year and have never used car services. You seem to take them much more.