handle such volumes, otherwise wouldn't the powers that be, have already done this? Sure, transport costs would have gone up (shipping via trucks to the USA if offloaded in Canada or Mexico), but when the retailers are getting 5 or 6 times what they paid for the Chinese goods (or other such countries) for resale in the USA, they have plenty of margin to cost these additional costs, I would think.

Of course w/ COVID and border restrictions, even this option may be up in the air.