The rest of the world countries should boycott US of not selling the products they needed. After 6 months Trump will knee down and beg forgiveness. That day will come.
China survived from the 1900's and will continue to survive with or without the US market. China does not need to make concession to an unfriendly country. The US and the West never have much respect for China. If the west and the US want to trade with China, they are welcome but on terms acceptable to both the seller and the buyer. The US will do well without the trading with China.