i think you need to understand how long and how big Saic are, they were founded in 1955, it is currently the largest of the “Big Four” state-owned car manufacturers of China, namely: SAIC Motor, FAW Group, Dongfeng Motor Corporation, and Changan Automobile, with car sales of 5.37 million, 3.50 million, 3.28 million and 2.30 million in 2021 respectively. That does not include the cars they make for other car companies, especially ev tech and motors.
I don't think the UK's import of MG cars would cause them a great deal of angst If we stopped buying them. it's because they are a mega car production company that they can produce cars at such a price point. There is no comparison with other car manufacturers coming close to their production capabilities. That is the reality of Saic and why they don't really care if you buy one or not. They can sell every car they produce and they cannot produce them fast enough to fulfill their order books. While the world's love affair with out four wheels friends continues to move into more greener expectations Saic will continue to be very competitive compared to European manufacturers who have been lazy, and that's being kind, in providing a quality low cost mid sized EV at an affordable price point.