The psychological benefit of feeling safe is invaluable, and the train at night is definitely the scarier between that and a car, but the fact is between a car that you call for and a car that you press a button for there is no difference in safety besides one that exists in your mind. The implication that you are safer because an AI pages the car rather than a dispatcher, or that a gig worker who you see a picture of on your phone is less liable to sexually assult you than a full-timer who you see a picture of on their cab liscence, or that a massive multinational is a safer steward than a citywide business - these are just not true, no matter how many people Uber managed to convince through marketing.

Now, in terms of harassment, I could see that taxi drivers being typically older and more male than rideshare drivers would account for a difference (although no data I have seen suggests that), although I've heard stories of Uber drivers too so idk. Uber drivers are less professional which might lead to more harassment.