It's an easy, practical option yes. It's a lot easier to go to app and request a pickup rather than having to call all your friends and praying for a ride. Yes Lyft is available as well but it's not as big as Uber yet so you're less likely to get a ride. Some cities like Austin have niether
I don't even know why you're presenting these two scenarios as the either/or we have to accept. Drunk drivers will always be a problem and there are multiple ways to deal with them, and you don't want just one company to be the only solution available (what if they go out of business? Have you seen the way they're burning cash?). Conversely the problem Uber solved isn't particularly technically challenging, as evidenced by how many competitors there are in the space, and despite its bluster and bullheaded ways, it doesn't really have a unique advantage or proprietary lock on the idea that would ensure a monopoly, so there's no reason to put the specific company on a pedestal as you have. So given the options between a company that does
all these shitty things but solves this particular non-unique problem and a company that doesn't do those shitty things but still solves it, why would you hold up the former as the shining example?
Also it's worth noting that in the two scenarios you compared (getting hit by a drunk driver vs. getting hit by an autonomous car), the former is already strongly prosecuted in most areas and there are strong societal and legal repercussions for it, while the latter is a grey area for liability that hasn't been written yet, and I'd bet money even if Uber were in total control of the car, they would still argue they had no liability at all and there would likely be nothing they could be criminally charged with. Given the company's very public attitude toward regulations and conducting tests in the wild without approval, do you trust this company to adequately face the consequences for irresponsible driving the same way you expect drunk drivers to?