I’m this case a bad review could threaten someone’s livelihood and ability to feed/house themselves and their dependents. I feel a lot less bad leaving a bad review on an object on Amazon, but a bad review of a person who I know might very well lose everything because of even small changes in rating makes me nervous to rate them anything worse than a perfect score.
If you genuinely thought they were driving dangerously, then isn't it better to report it than to not? It's not really your fault that Uber's internal culture is so toxic. On the other hand, your choice to use Uber supports them. On the third hand, traditional taxi services often deliver exceptionally worse service, so what is someone to do?
Regarding the driver's livelihood, it seems to me like you should not worry so much about the choice of clicking a button in an app on your phone. For one thing, the driver probably isn't actually on the edge of ruin, and if they are it was due to a sequence of events that started long before you got into their car. If that's not the case, and Uber's in-app rating system is indeed a life destroyer, then at the very least maybe you should uninstall that app immediately, give the app itself a 1 star rating, and not associate yourself with Uber in the future, even at the cost of your own personal inconvenience? Would you ride in a taxi cab that included a loaded revolver in the back seat next to a sign that read, "satisfaction guaranteed, no questions asked"?
Their job is driving. If they do that dangerously, then yes they do deserve to lose that job. They don't get a free pass to endanger the lives of others just because they'd be financially ruined if they are fired.
