And why would they do that? They themselves also need advanced chips, which they can't get when the west boycotts supplies. In the end, such actions are doubled

And why would they do that? They themselves also need advanced chips, which they can't get when the west boycotts supplies. In the end, such actions are doubled-edged swords, nobody benefits. I find all this decoupling rhetoric/fear very weird and contradictory. On the one hand people say we should decouple from China, on the other hand we fear decoupling from China and we get furious when they initiate decoupling (see Australian trade). In the mean time actual Chinese officials keep saying that a trade war benefits nobody and keep calling for rational decision making.