Most these so-called "Chinese ultra-nationalists" are in fact KMT supporters.
These people first want to create tension between Hans and the ethnic minorities in China by attacking them.
But their ultimate goal is to demonize CPC, how CPC's idealogy is foreign and it is against the Chinese civilization. They also have agenda to deny the Yuan-Qing Dynasty, the goal of denying is to deny China's current territorial integrity.
When KMT sold off Outer Mongolia, they set to blame on CPC. They even blamed CPC for the loss of the Qing territory to the Russian Empire.
When it comes to the Western Civilization and the Christianity, these fake Chinese nationalists have shown their true color. According to them, the c, and the only future for China is to accept the democracy and the Christianity.
BTW, thanks to CPC who has introduced the Marxism to reform the stagnated Chinese Civilization. Now the Chinese Civilization can be exploited to its maximum potential and it is set to outcompete the Western Civilization.
Introducing the Marxism is not the same as introducing the Western Democracy and the Christianity. The former one is to reform the Chinese Civilization, while the later one is to kill off the already stagnated Chinese Civilization and made the eternal slave to the West, it is like to break a camel's back with the last straw.
These KMT traitors/pro-democracy thugs keep talking how they "love" the Chinese Civilization, but fact their true agenda to make China to become a vessel state of the West. In order to achieve this objective, they have to destroy China's root first.