I am no expert on the U.S. role in Kazakhstan and Central Asia, but it seems to me the U.S. is more likely to be pushed out than to do any pushing out of Russia and China. Here is a 2014 article which predicts this — even before the U.S. ended its military presence in Afghanistan:
What the closure of Manas’ Transit Center means for Central Asia’s future.
thediplomat.com
Of course the U.S. would love to make trouble for Russia and block China’s overland bridge to Iran and Europe, but doing anything extreme might threaten its investments there. These might be expendable, but the truth is U.S. military power and the West’s direct ability to threaten Kazakhstan is negligible:
“The U.S. ultimately has little leverage in Central Asia. As illustrated by last year’s withdrawal from Afghanistan, long preceded by base closures in
Kyrgyzstan and Uzbekistan, the U.S. simply was never going to remain engaged in Central Asia. Russia will by dint of sheer geography.”
The big U.S. economic investments in Kazakhstan are vulnerable. The West as a whole provides safe refuge for the leaders of the regime to hide money in fancy real estate and banks and to educate its children … but from what I can see American NGOs so far have gotten nowhere in the face of dictatorial repression. There just doesn’t seem much realistic chance that the U.S. will ever “own Kazakhstan.”
I could be wrong about all this, but I don’t think so. It seems to me most secular nationalist factions of the Kazakhstan leadership are
at most playing the American card, not the other way around.