>>I have no idea where to get a (usable) phone / computer
Samsung is Korean, and does much of their production in Vietnam, none in China AFAICT. They have a pretty broad line from premium down to good enough value that I've seen my provider offering multiple models for free (as in beer) with the phone plan. You can certainly get an older/refurb premium model for cheap.
Yes, they have outplayed us so far, but that tide is changing fast. Obviously, the big govt & biz players must drive it, but we can do our part.
Yes, there's a billion civilians unwillingly living under CCP's despotism, but the best we can do for them now is to not do things that support that system.
The Great Experiment has utterly failed. The generous idea that open trade and exchange would bring open democratic systems turned out to be false, it only empowered the autocrats, who are now on the expansion warpath (see Ukraine and Straits of Taiwan, this minute).
Obviously we can't yet be absolutist about it, but just making the effort on everything we buy, try to shift it to a substitute from ANYWHERE else. If you can, great, and if not, next time there probably will be one.