It is voluntary though. The US has no jurisdiction over Europe or Korea or China. They could say screw the US, we are developing our own independent equipment and supply chains. But will they do it? No they won't. And even if it were involuntary, who cares? It makes no difference. At the end of the day, they choose to comply with the US, they will comply with the US. That is all that matters.
And not only chipmakers, but China's own consumers will abandon Huawei. Don't think the home market is safe. You can talk about patriotism all you want, but not many people want to go around with an inferior phone just to be politically correct.
And not only China's chipmakers and consumers, but Huawei's own employees will abandon Huawei. They already are, as many of their talented designers have jumped to other companies. Oppo. Vivo. Xiaomi. Samsung. Apple. There are plenty of alternatives. At the end of the day, no opportunities, no salary, no workers.
In short, Huawei will have no friends. The US government's power is so great that it can control and compel everyone. That is why China should seek better relations with the US instead of fighting.
You think that by sucking up to the United States that will make the United States treat China any better. You are extremely defeatist.