Are you proposing we guarantee access to avoid potential access?
An economy kept dependent on American tech is unlikely to drop bombs on America and vice versa. Co dependency prevents war.
Soon, China, if they aren’t already, will be the premier developer of Thorium reactors courtesy of Oak Ridge, Tennessee and they also are now number one or at the least 1A when it comes to high-speed rail, and if the Russians and the Ukrainians weren’t fighting each other, that high-speed rail probably would be already built out all the way to eastern Europe.
China is a trading partner but there is still a serious catalyst for war in the form of the South China Sea. If we went to war with China in 5 years time, why would we sell them the tech they need to match our ability now? Let them figure it out on their own.