You make great points, it’s absolutely a life changing decision and giving up my shot at a green card does sort of feel like giving up on a 10-year+ dream. I’ll certainly take more time to think about it.
In the meantime, I’ve noticed that UChicago recently updated their admissions page to say that tey are now need blind for US and Canadian citizens 
. I really liked the school when I visited, so this is a pretty nice change…