The thing is, there are three ways to survive as a company. The one way is establishing a brand like Ecoflow, DJI, Anker, and do what you suggest. The second one is to produce directly for some large Western brand (either as contract manufacturer or ODM). The final way is to just flood the Western markets with cheap garbage and alphabet-soup brands, and make up the lower margins in sales volume. There can't be that many companies making and selling PL259 adapters as there are "brands" on Amazon selling them, after all.
...and because they don't have a presence in the West and don't care about their brand(s), if the shit really were to hit the fan in such a big way that they can't just sit it out, they can simply drop that particular brand, while the remaining heads of the Hydra will be just fine.
Also, I recently watched this: https://www.youtube.com/watch?v=t2TfbN3v8h8 , which may be smoke and mirrors and have me slightly biased. Also, my iphone is made in China.