Warehousing won't solve the greed problem at USPS. The $5 poll tax on all shipments is just insanity. Stamping "priority mail" on 1st class packages and using red, white, and blue boxes doesn't justify their greed and incompetence, no matter what the USPS execs think ....
I foresee that withing 6 months China will have 100M square feet of dropshipping warehouse space in Vietnam. This is another in a line of Trump "look busy, change nothing" initiatives, the only difference this time (vs the border do nothing initiatives) is that this time the problem is real, unlike the non crisis at the border where immigration is near a multi decade low!