The problem with this argument is that it assumes Chinese imperialism was necessary to defeudalize Tibet

You failed to consider my mind palace, fool! I can imagine things going better! The perfect IS the enemy of good, but only in hindsight!

We defeudalized you so now we get to forcibly assimilate you / erase your culture is wildly unacceptable by any measure.

You thought my mind palace only had one weapon? Fool! I can invent reality wholecloth!