Less than a week ago, Citi broke the buck. In another era, not so long past, they'd have been delisted from the NYSE.
Apparently American investors in general are not blessed with your unique vision and insight into the financial world.
Go read the actual 10-Qs and analyze the cash flows, ignoring all non-cash charges. Then come back here and tell me Citi can go bankrupt, by any process other than being seized at gunpoint by the government.