No, I'm going to bitch about a western government (particularly the United States) because I FUCKING LIVE HERE!
So what? As you said:
China The U.S. sucks, but I'm not going to make a big song and dance about it, because compared to the wealth of other oppressive regimes, its small potatoes,
Why should I make it my business? Give me a good reason, because I'll stay neutral in the matter until you do.
Because it's difficult to convince people that voluntarily funded solutions to international relations are a good idea if you choose to remain willfully ignorant of them.
I think more westerners are aware of China's domestic problems than they are aware of their own. The US gov has been spinning anti-chicom propaganda for half a century.
We are currently embroiled in the restructuring of one totalitarian regime, and all across the South American continent, Africa, Western Europe, the Mid East, and Asia, there are various counterparts with their own indigenous populations being oppressed under their governments de' jour.
The US is not the global police. Boycotting products does very little because their governments and ours dictate the tariffs and restrictions. Other industrialized nations operate independently of our importation laws, as they should.
Theres nothing wrong with being independently aware of foreign situations and adjusting your spending habits to reflect your opinions. However, in the global market, I am interested in one factor - me. Given the choice, I will buy the cheap product if its not critically important to have quality. My economy is my first priority. If their products are available in the marketplace, I will buy them. They are being sold all around the globe. With that sort of volume, your purchase of a single unit doesn't matter to anyone but yourself.
And, of course... Anyone who would like to lend a hand to the oppressed needs only to buy a plane ticket, cash out their savings account, fly to wherever the trouble is, and hand out their cash to those in need.
That is the only real impact you could make as a single concerned citizen - to help elevate the conditions of the oppressed and be prepared to fight by their side when their civil war begins.