It is refreshing to read this thread, and surprise to see SO MANY people somewhat familiar to China's history. Might I ask that among all the posts in this thread, anyone who is NOT an ethnic Chinese? That would be really surprise (and pround to heard).
My opinion, that MODERN Chinese CITIZENS, got a little "caught-flat-feeted" to China's historic prospect:
For modern Chinese society, it is a MUST, to tighten up the harmonic relationship between the majority race and the minority races of which Manchu among them; And what CCP has done in the history, is justifiable to the concept of "Being good for the Chinese people" (watchout the EXACTLY words!)
It is sensitive to some issue(like this thread), and even overseas Chinese ethnic people SHALL definitely being influnced in certain degree.
Think this: You can not give some kind of unresting suggestion to MODERN Manchu ethic Chinese citizens, that your ancestors were once considered non-Chinese (non-中华民族, which is odd to either citizenship or ethic diffination); it is BETTER NOT to memtion these non-Chinese people has invaded China sovereignty and later SUBMIT to Chinese culture, only because they can not kill off all the Chinese. And now they are (have to) being considerd as "among Chinese" 中华民族一员.
So when Wu sangui BETRAIED the Chinese ethnic and Chinese sovereignty to the later "among Chinese" (yet another race and sovereignty) kind of people - Even people without his political agenda, can be very confused.
Me, at other hand, considering this: If Japan successfully "take over" China during WWII, despite what ever NEW govt would say about it later, that Japan and Japenese, are definately non-Chinese. You guys can think similiar like if Japan takes over USA or Canada, or whatever "one takes over another" - Surrender to the one who "take over", especially HELPS KILLING the original people. That's undeniablly BETRAY in any measure. And the idea to sugar up any of that kind of betray, is an direct insult to A WHOLE SOVEREIGNTY RACE. and by that measure, an direct insult to NORMAL(SANE) HUMAN MORAL.
I have no single doubt, Manchu at that time, is a life-or-death enemy of China (watchout the EXACT words!), and Wu sangui's action have no single excuss. He is a traitor as long as human moral stands.