They are very competitive in the places where most people live, but the USPS delivers to many more places that the others do not, and still maintains cost competitiveness.
This turns out to be a decent analogy to healthcare: insurance companies do not provide the coverage, universality and simplicity that a single payer system would; instead, you'll get something like insurance coverage networks providing spotty and inconsistent care.
Either approach has upsides and downsides, but single payer, universal coverage for basic and emergency healthcare seems like a no-brainer.
This turns out to be a decent analogy to healthcare: insurance companies do not provide the coverage, universality and simplicity that a single payer system would; instead, you'll get something like insurance coverage networks providing spotty and inconsistent care.
Either approach has upsides and downsides, but single payer, universal coverage for basic and emergency healthcare seems like a no-brainer.