1: Exclude China from the ISS and co-operative spaceflight technology and advancements just to be a dick

2: Retire your (mediocre) space shuttle program, opting to outsource spaceflight entirely to privately owned space programs

3: China develops a successful domestic space programme in less time with a better build quality, lands on the moon and launches a domestic manned space station

4: Private spaceflight is dodgy, unsafe, overpriced and SEVEN YEARS behind schedule, this stranding your astronauts for 6+ months, with no telling if the 2025 estimate would actually happen because the backup plan to Boeing is Elon Musk's SpaceX

5: ???

6: Profit(?)

See at this stage, I feel like if the US repealed the amendment, apologized and simply asked China politely, those astronauts could probably be brought back within 2 weeks. But it's an election year so idk if the Dems want to appear weak on China. Sucks to be a USian astronaut right now.