This is a Manhattan Project-level endeavour, and most countries would not be capable of it. China, however, is. Even though it lacks the expertise to do all these specific things to the Western cutting edge level right now, it has the resources, the overall technology and engineering base, and the determination to achieve the goal with the full power of the Chinese economy behind it. Not to mention industrial espionage.

It might take them a decade, but they'll get there. Working on the basis that you can somehow stop China rather than merely delaying them is a comforting illusion.