That's a circle jerk argument.
No more so than your Chicken Little ("the sky is falling,") save the USPS arguments.
You're argument has been addressed multiple times. Is the USPS reliant on tax dollars beyond the election mail? No. That wasn't even a good try. This is you running a circle jerk.
Seven consecutive years of significant USPS losses mean they will either turn off their lights, raise their prices substantially, or require a gov't bailout to continue operating in the delivery biz (and it is a biz). What's your preference?