Yup. That is a page from the cultural assimilation playbook. This is also why much effort went into building a rail line from the heartlands of China into Tibet

Yup. That is a page from the cultural assimilation playbook. This is also why much effort went into building a rail line from the heartlands of China into Tibet, including crazy engineering feats necessary to stabilize soil within the weather extremes of those region. Another page from the playbook: standardize the official script in which you write the spoken language. That has happened multiple times in Chinese history. And American history too.