The US prefers to bomb people who struggle to fight back. They know China would pose a serious challenge and that's too great a risk to take head-on. Just look at how quickly they gave up against Yemen, and they aren't even close to the same level of military power as China.

Rather than engage with China directly, they will attempt to attack indirectly as they did with the Soviet Union. China can attack the US mainland, Venezuela would struggle to do so.