Well it will be interesting. For the last decades the US had printed money with bonds and exporters to the US have bought those bonds to spend their dollars and not put pressure on their own currency.
If China is no longer exporting to the US it will no longer need to buy bonds, so if the us is printing money with bonds where dollars are not parked, those dollars increase dollar supply and therefor increase inflation. Money 101.
If those jobs come back to the US, then less need for bonds. If those jobs go to Vietnam, won't they just buy the bonds to keep their currency stable against the dollar?
If China is no longer exporting to the US it will no longer need to buy bonds, so if the us is printing money with bonds where dollars are not parked, those dollars increase dollar supply and therefor increase inflation. Money 101.