I hadn't seen either of those two videos before, but I did previously watch one entitled "You will never be Chinese" in which they discuss the attitude you mention.
I lived in China a long time ago. I had not experienced anything like what they both describe. It seems to be a very new development, if it is accurate.
I am thinking that this developing attitude is the consequence of China once again becoming prominent and powerful on the world stage. At one time China was regarded as incredibly arrogant by the various Western powers, and this was at a time hundreds of years in the past. The opium wars and it's aftermath, followed by the Japanese occupation, then Mao's "great leap forward" had taxed them past the breaking point.
Now that they are back on their feet and once again emerging as a world power, I think they are simply reverting back to their previous attitude regarding Western barbarians.
I am encouraged that Christianity is making dramatic inroads into China, because if the trends continue, they will be a rather formidable foe which I would rather not have to face in an adversarial role.
Spiritual Christianity (as opposed to veneer churchianity which in the recent past has become more and more common in the west) will encourage peaceful and gainful resolutions of difficulties, because it will operate under the grace of God.