While it is true they have found a golden cow (us) ... the desire to make it their own by building their own markets in the region and addressing them themselves, as well as other markets we will ultimately have mutual interest in.
It's a matter of timing ... at some point the two interests will collide and I believe they are planning for it now. I posit that in the fictional series and then write a story around it.
China is not our friend ... they are biding their time while many here seek after a "golden cow" of our own ... which the vast majority of those people over there will never see as their leaders keep them down. will never. We kid ourselves into thinking that if we just through enough money, technology and diplomacy at them that the people will make it for themselves.
I wish that were true. But historically we are much more apt to just bankrupt ourselves while feeding the very powers that want to evict us from the area ultimately when they fell strong enough. Reagan provided the best exampl of how to ":engage" such an advesary/competitio. I believe it is what we should do with China now.
They ultimately intend to not only bite the hand IMHO, they will try and dismember it in their own interests when the time is right for them.
Just my opinion.
I am so proud of you.