labels are NOT allowed on any UPS or Fedex shipment, 4x6 sized only.
So their is a purpose for the USPS for smaller shipments and low volume sellers sending box shipments. Trump
shouldn't disband the USPS IMO since it really doesn't benefit us to do so. UPS and FedEx have no interest in lower rates for letter and padde mailer mail. They don't have enough manpower to deliver tons of letter mail for the costs of ~ $0.40 to $1.80 per flat.
Some countries like Germany subcontract their box/parcel shipments to couriers and let the local post office deal with letters and padded mailers. This could be an option, for USPS to push all the parcel off to couriers so they can keep elderly workers delivering out small stuff.