It doesn't sound like fatalism at all. Recognizing and accepting reality - things as they actually are - isn't the same thing as being fatalistic. As opposed to being wildly delusional about the context for example, which is the guiding philosophy of the do-something-to-stop-China cohort. You can't stop China as they imagine it and thinking that it's possible is quite irrational.

Doing a conservative extrapolation on China's economy and understanding how much larger they're going to be than eg the EU given another, say, 20 years, is not fatalism either. It's obvious that China is already exceeding Russia militarily, and the trend is extreme (not subtle), so the gap will get a lot bigger in the next 10-20 years accordingly. That too is not fatalism. Accepting the bounds and facts of reality is not fatalism, rather, it's a necessary first requirement to then be able to generate a practical, rational course of action.

Who said I have a big plan. Why should it be big? What difference would a big plan make against China, it would never (should never) get off the drawing board. The Pentagon has lots of big plans; ask them about their big plans for the Middle East in the 1990s, or their big plans for Vietnam in the 1960s, or Russia in the 1990s.

Pretending things are not as they are, is how you get big disastrous plans of the sort the Pentagon is good at coming up with. That's how Iraq happens, that's how Syria happens. A superpower with a big plan to contain another superpower a world away - gee, that doesn't have an obvious outcome does it. So the US burns its treasure to contain China, while China doesn't burn its treasure to contain the US, the outcome to that is straight-forward (and again, also not fatalism; we don't have to behave that way). The US will expend most of its effort punching itself in the face, while China focuses on extending regional dominance. China doesn't have to go anywhere, it's their backyard; the US has to expend great resources just to be there.

It is not the job of the US to change or contain China, it's highly questionable whether we could contain China much at all, and it's not at all necessary in order for our people to prosper. Similarly, China doesn't have to contain the US for their people to prosper (as witnessed by the past 30 years). Just like we don't need to invade Venezuela, Iran, Myanmar or North Korea so that our people can prosper. The US is in desperate need of a priority adjustment: we need to start improving the lives of our people, or else.

I have a modest plan, which is all that is in reach of the US to achieve in the next few decades. The US is going bankrupt at the Federal level, it has to monetize ever greater sums of its own junk paper to continue normal government function (ie it has to steal from the wealth of its population to keep the lights on). Social spending obligations will continue soaring for decades yet, as such the US faces a dramatic reckoning of having to choose between playing global military superpower and the welfare of its own people. It can no longer do both. The cap on what the US can do in Asia is quite clear. Just start from: "not much," and you'll be in the right neighborhood. Just ask North Korea about their nukes. Maybe the US will sail a few boats off of China's coast, through the Straight, very exciting stuff.

A modest plan that the US can actually put into action that is focused on its own people, not on the absurd notion of a superpower from North America pretending it can afford to contain or control a superpower in Asia.

Sure, China will ossify, somewhat, under Xi. That's unavoidable in a dictatorship. They still have slack to fill out yet, easy gains. They still have a couple hundred million people living on ~$5-$7 or less per day. A quarter of their population is still living a third-world lifestyle. Lifting those people up to the economic level of Bulgaria will add trillions to their economy; things like that are easy wins for China. Technological advancement is not difficult for China, with or without Xi, so they'll continue to make rapid progress in military, tech, space, aerospace, biotech, etc. Momentum often carries large systems a great distance even after they stop functioning well (just ask the US). China isn't done building out its national infrastructure either, they have decades left of that yet. They still have exceptionally inefficient farming, which can be boosted to first-tier levels. They still have a lot of nuclear & renewable energy to build out. There are another two billion new consumers to be born in the next 30 years, to be fulfilled by China's manufacturing. The China economic engine isn't going to stop because of Xi, he's restricting and damaging their max potential. China is still a boulder rolling down a hill as far as Asia is concerned.