It isn't just the US, Russia has oil and shares a land border with China. However, Russia isn't always friendly with China, nor is the middle east, and anyways, it just seems like a headache to deal with them + the petro dollar when they have plenty of energy to tap at home.
Air pollution was also a huge problem, aside from national security. China's empahsis on STEM and the fact that they've been a huge source of engineering/science/tech talent meant China could just tap its own human resources rather than making them go abroad for decent jobs. The fact that they also know how to build things and have set up all the infra for that is just another bonus.
China is willing to play ball in less developed countries, and the deals they setup is not just Chinese companies coming in and dominating the market, they are also partnering with and trying to raise local companies as well. That won't work in Europe or the US, at least for now.
It's true that Russia and China share a border, but the infrastructure to move oil across it at large scale barely exists and I got the impression the geology is very unfavorable for it. It's probably easier to ship it, but future pipeline expansions may still happen.
The whole Belt and Road initiative seemed to mimic a Korean style labor export to increase the inflows of currency into the country while keeping people employed, but I also kind of figured it was aimed at reducing the friction of future resource transportation between the countries.
Air pollution was also a huge problem, aside from national security. China's empahsis on STEM and the fact that they've been a huge source of engineering/science/tech talent meant China could just tap its own human resources rather than making them go abroad for decent jobs. The fact that they also know how to build things and have set up all the infra for that is just another bonus.
China is willing to play ball in less developed countries, and the deals they setup is not just Chinese companies coming in and dominating the market, they are also partnering with and trying to raise local companies as well. That won't work in Europe or the US, at least for now.