When the west creates games like Batman, Spiderman, Unchartered, God of War, the players learn to admire/worship white looking people as cool, powerful, sexy, heroic, other good traits, etc. Why? Because the characters are clearly white people doing cool stuff.
If the culture you two are talking about here is bounded by the color of skin or specific clothes, then I think we have different views about what is culture.What a terrible example to support your argument. The people watching CGTN videos are already under the influence of Chinese soft power, much less the ppl who comment under them. The person commenting is Chinese, and probably inside China using a VPN to post on youtube.
Your example shows the misguided interpretation of people online appreciating Chinese culture from Genshin as an example of China's soft power, when in fact it was just Chinese people appreciating Chinese culture all along. This is the textbook definition of a circle jerk.
At least in china, we differ Chinese people from others by if they think and speak in the Chinese way, not their skin or clothes. Are you guys suggesting that one who wears fancy clothes from the west or has black skin on the street, speaks and thinks in our way, and has the same common traditions and history understanding as everyone else in china, is a foreigner in Chinese culture?