Update: China wasted no time to issue a harshly worded response to the passage of the Uighur bill, and in a statement published moments ago by the Chinese foreign ministry, said that whereas "the US plan to use the Xinjiang-related issue to sow Chinese ethnic relations, undermine Xinjiang's prosperity and stability, and curb China's development", this is "absolutely impossible" and Beijing urges the US to "immediately correct its mistakes, prevent the aforementioned Xinjiang-related bill from becoming law, and stop using the Xinjiang-related issue to interfere in China's internal affairs."
The statement ends ominously, saying that "China will respond further according to the development of the situation."
In other words, even more words, and no actions, suggesting that at this point, Xi may have capitulated and is scared of actually doing something instead of just speaking.
Full statement below from the foreign ministry:
Foreign Ministry Spokesperson Hua Chunying's Remarks on the U.S. House of Representatives Passing the "Uyghur Human Rights Policy Bill 2019"
The U.S. House of Representatives has just passed the so-called "Uyghur Human Rights Policy Bill 2019." The case deliberately discredited the human rights situation in Xinjiang, arrogantly discredited China's efforts to radicalize and combat terrorism, maliciously attacked the Chinese government's territorial policies, seriously violated international law and basic principles of international relations, and seriously interfered in China's internal affairs. China expresses its strong indignation and resolute opposition.