Really "you have no reason to" so all the documented facts and evidence of China pirating anything they can get away with is just a bunch of BS designed to warmonger gee the rock you live under must be really deep under the sand
Sure, there's evidence that China has copied things, I would never say otherwise. However, just as in the criminal justice system, everything must be considered in a case-by-case basis. Now, in this instance, the evidence is, in fact, to the contrary as VIA is being paid for the use of their x86 licence which is well within their rights. I have no problem with anyone using a pre-existing design so long as the owner of the design has agreed and is being properly compensated for it.
Remember that the only reason that AMD got an x86 licence was because IBM demanded that Intel give them one and Intel complied. These days, Intel and VIA are both "copying" AMD because all 64-bit x86 CPUs are based on the AMD64 architecture. Nobody ever had a problem with that so why should anyone have a problem with VIA working with China? It's not like China is going to make a quantum leap in tech because they've already demonstrated their capability of making extremely powerful supercomputers using ARM CPUs of their own design anyway.
I think that this is actually a good thing for consumers because I can guarantee you that VIA will benefit tremendously from what China is paying them. We might finally have a third option in the CPU market again and if we're lucky, VIA might even resurrect S3 graphics which will give us a fourth choice in that respect.