Its not good because of some dumb notion of countries "having their own shit." Its good because the US is openly hostile and capricious in its relationship the PRC and its good for them to decrease any existing reliances on anything from the US, since they have the capability to.

The US is going to fuck around and amd find out on this. US needs the PRC way more, but its commitment to being imperial hegemony and to white supremecy are going to fuck it over. Thats going to be great to see when it happens