Just don't use the US port -- use Canadian or Mexican than ship across the border using rail or trucks.
Yeah honestly China simply doing nothing in the short term is a pretty valid option.
If played right there's a path to China using this to expand dominance from ship-building to shipping operations.
- Ships take years to build, so immediately US policy will just lead to shipping companies reallocating existing ships.
- Then the companies have to make a choice, do they bet US policies will remain by the time their orders gets built.
- Among shipping companies that bet US will retain policy, and place order with Korean and Japaneses yards, those orders will drive up price and delivery time and hurt the competitiveness of those shipping companies both financially and from just the shortage of ships.
- Chinese shipping companies will of course continue to order from Chinese yards.
Then China do the funniest thing and, right as those new orders get built, put a equivalent dock fee on those new orders, in the process not only kill off Korean and Japaneses ship-building but also kill off shipping companies that shifted all their orders to them
The above is advantageous to China, but if China also wants to f* up the US, then instead of taxing non-China built ships, China can tax any ships that carried any cargo or container outbound from US after announcement date, so shipping companies from that point on must separate their fleet into US and non-US fleets and basically make it prohibitively expensive for US to export anything, even via third parties.
Americans are dismantling international norms without understanding those norms are what's protecting them from being torn to shreds by the real king of the jungle.