of course you can. Do you know why the Breton language in France is reduced to 200k speakers and the Académie française gets to determine how French is spoken? Because the state stamped out every regional language during the creation of the Republic, and that was that.
Are the native cultures of the new world almost gone because they're worse cultures? No, it's because they were defenseless. Did Chrisitanity and Islam spread because they "worked?" No, they were spread by sword or settlement.
China's experiment isn't new, it's not even an experiment really. how do you think the Romanization of large parts of the old world happened, or the Russification of much of Eastern Europe? Is Finland 'idiotic' for defending its culture? Are they actually just living in a worse culture and haven't realised it yet?
What a terrible might makes right logic.