Don't sweat it. Realists will completely agree with you. China has come a long way, but has a long way to go.
What gets us (or me, since I can't speak for anyone else) riled up is how certain people insinuate that China cannot do this or that, because of innate characteristics of Chinese-ism. Basically, racism.
Also amusing is the clear straw-grasping that some people do in the face of evidence for Chinese progress. This is rather pathetic and actually hilarious to watch in action.
But, taking a step back, both of these phenomenon are good. The less they understand, the more complacent they are. What would be far more frightening is clear-eyed and sober analysis of Chinese capabilities and trends. Hence I am surprised that sites like this one is not under constant attack by red hackers.
Probably PRC still behind US but definitely not behind Russia or Europe in aeronautical engine.