Not really. China has been colonizing a lot of poor nations. It is not so much US vs China. China is taking control of the oil production in Venezuela.
Yes, and I don't think the USA is happy with China taking control of Venezuelan oil, the largest oil reserve of the world.
There are, somewhere,
documents about how strongly xenophobic Venezuelan culture is (currently).
Anyone (US, China, ??) may encounter difficulty doing anything not 100% proxied
