With the pandemic that we have, I don't think these powerful countries are thinking of going into war. For what? They need to prioritize their people over ego of something. People are dying and suffering because of this pandemic, and they want to go to war? I don't think so. And China can't hack bitcoin as it is decentralized. Unless, they will hack a crypto exchange and get their bitcoins' holdings. But there's no need for that. It will just ruin their image to the world. They have their own wealth already.
I agree. The leaders of both countries will surely take good care of its citizens first before thinking about their egos regarding political issues that can be fixed through humble negotiation and there is no need for a war to arise for we are all still suffering into the effect of the Coronavirus pandemic most specially at the part of US who is still leading its way to the top of having the most number of cases in the span of months that the pandemic is on this year 2020. Such political issues and egos of both leaders from US and China must be set aside for a while and better focus on the welfare of its people rather than raising a war that can just cost lives and would be a nonsense fight because this pandemic is already causing death due to health related threat.
Also, I do not think hacking of Bitcoin will be involved on the tension between those two big countries for what are they are fighting is on a political matter and also health related due to issues that Pres. Trump is throwing against China regarding the reason of starting this pandemic for it is said that the virus originated in Wuhan, China which is the ground zero of the virus. With that, there is no concrete reason to involve Bitcoin then.