The point I took away is that since the normal methods of "ok discrimination" are not available and Uber refuses to do the needful on their behalf, women should be able to "use the big gun".

The reality is that if Uber rapes are an issue, and something like this is not allowed, women will just stop using it entirely.

Or special Uberpods will be developed where the driver is completely encased and the passenger has a "auto drive to police station" button.