I don't understand why there are such extreme export controls wrt China. Isn't a more technologically capable China better for everyone because it increases the supply of high-quality parts? Is it just revenge for Chinese nationals stealing IP ?
The US's upper class is afraid of China taking over as the biggest economy in the world.
If they think that's a risk wouldn't they just put their money into China?
they tried
They did. Many got so rich because of China.
Because China is a threat to US allies in the region and regularly speaks of its ambition to invade one of them.
Wouldn't sanctions just make them more antagonistic? If you integrate China into the world economy more they have more to lose when they invade. Imposing sanctions necessitates they become more self-reliant, making them more resistant to further sanctions if they were to invade.
This is too risky because China is growing too fast. In contrast, proposing some proposals that can be implemented quickly and take effect during the four-year term is more likely to be passed and reflect political achievements.
China was integrated into the world economy (and still is, albeit not to the same degree as it once was). It did nothing to curb the CCP's imperialist ambitions. That navy and the bases they're building in territories they hold no legal claim to could've only been built with money from foreign trade.
It's blatantly about international power. Technology is seen as a bottle neck to limit China's power on several fronts. Economic power, military power, scientific power, technological power.