As someone who currently lives and works in China, fuck yes. If you must, cut it down to the 1% that speaks English and thus has a reason to visit foreign sites, and you're still pissing off over 10 million people. Not to mention poor foreigners like me who try to get some work done here.
Yes, it's fair, because many developers live in a little bubble. The United States, Canada, Australia, Russia and all of Europe combined is only 15% of the world's population.
You can argue the other 85% doesn't have internet access or isn't your target audience. However, I run a site that's geared to the US market, it's entirely in English, and 12k of my registered users are from China (1.5%). If I included files from the Google CDN, I'd be losing 1.5% of my users due to one line of code.