If China wants to foot the bill, let them. As I pointed out, the US hasn't been getting anything in return for the last 25 years of footing the bill, basically since 9/11. China cares about its people. They are currently fighting back against privilege and conspicuous consumption by the elites [1]. The CCP knows that an open revolt would destabilize their grip. After all, they themselves rode a populist wave into power.
I think of it like the Tour de France. Sometimes to win the race you need to move into second place, conserve your resources, and let someone else face the headwinds.
The comment about change felt like an ad hominem attack.