Well, if you search it, it's called "trade war" between US and China, and now Taiwan due colligation... Basically two things. One country increasing importation tax over the other to have a surplus on trade balance, which happened many times, there is even a wiki historic.

Second, embargos over semiconductor due hegemony on technological development, spacial, military, AI... As also mentioned by you...

Buffett sold all his shares (I think all) on TSMC last year due China x Taiwan "debt trap diplomacy", another macro term... And takeover threats, like on what happened with Tibet last century, which is 1/8 of China territory.