what is the rationale when confronted with the fact Chinese goes back at least 5000 years
Some combination of:
"5000-year-old chicken scratch is still chicken scratch 🤣🤣🤣"
"Listen, any eight-year-old Anglo can just about get the gist of Chaucer. If you can't, maybe you need to go back to school"
"The purported ancientness of Chinese culture is a CCP hoax", possibly embellished by something like "Well, since Taiwan is the historic homeland of the Chinese people, and since none of the records originating on Taiwan are that old..."
Some combination of: