The voting with your dollar argument doesn't sway me. People "vote" against their best interests all the time, in the booth
and with their money. Nickelback have a multi-platinum album, Benny Hinn is a multi-millionaire faith healer, and Strom Thurmond existed. BTW, maybe Nickelback would still be a success without Clear Channel, but they certainly wouldn't have the advantage of total radio dominance that propelled them there through sheer repetition. The radio industry should be to the record industry what the free press is to the government, but instead it's their Pravda. Trust-busting and collusion-deterring are very much in the interest of the people, and capitalism requires that non-commercial referee. Laissez-faire capitalism ISN'T capitalism, by the nature of the beast.
As far as the USPS goes, it's dirt cheap, picks up
and delivers to the vast majority of households (and in fact USPS has contracts with FedEX and UPS because they have much harder times delivering in rural areas, and they absolutely will not deliver to PO Boxes at all -- I think the last figure I read was that USPS handles ~30% of their packages at some point their delivery). I'm not suggesting it's perfect, or that it will or should last forever, but I certainly prefer it -- warts and all -- to its private counterparts, since its bottom line isn't merely profit, and I'd ultimately rather see it improved than scrapped.
Sword-billed hummingbird: