It's also worth noting that, economically, it's not surprising that the country with the most people would have the largest economy.
There's nothing fundamentally different between the people of the US and China beyond the conditions they're born in. Insofar as innovation is a product of economics, educational investment, opportunity for innovation and a random chance it happens, and economic strength is a product of innovation and raw work output, it follows that more people leads to more work output, and eventually to a larger, more innovative economy.
A disorganized China and some key innovation breakthroughs by the west last century gave a significant headstart, and some of Maos more unwise choices slowed their catch-up, but it's not surprising that an organized country with five times the US population would surpass us in economics and innovation, to say nothing of being competitive.
No, the supreme Court ruled that the individual who is the president has immunity for actions taken in a presidential capacity. Absolute immunity for exercising presidential powers, and and presumptive for actions taken as the president, pending the prosecutions ability to argue that holding the individual personally liable couldn't possibly infringe of their exercise of constitutional powers, and they have to make that case without referring to intent.
The specific case was about when trump, as president, contacted Governors and law enforcement to try to convince them to overturn the election for him. Under their ruling, since he was acting as the president, they decided you can't consider his intent. So the prosecution would need to argue that there's no possible infringement on constitutional power if the president can be prosecuted for discussing an election, election security, and election interference with Governors and law enforcement.