Trying to grasp is like playing some sort of malice–stupidity 5D chess. Do they realize such a ban would be unenforceable? Even if it were, would they really strive inflict something like Windows Server as the sole foundation of the Internet as a whole? Do they realize that if their wildest surveillance wet dreams came true, everything got the perfect backdoor, the perfect backdoor would be just as perfect for any of their enemies who managed to wield it? If they do realize, do they care? Again, they're not just dinosaurs or politicians, they're both, so who knows.