My dad could still be alive, but he's not

>my dad is dead, because his family members were too naive to know that the thing they were instructed to do by the state was a false thing.

We're told a lot of things by "officials" not because it's correct, but because it holds the least legal liability for official parties involved, especially anything involving healthcare. These officials also sometimes include doctors, who work to protect themselves and the system first, and then patients.

Incompetence and laziness among doctors is a big cause. As a professional you've probably worked with many colleagues you thought were bad. Well there are doctors like that too. Many of them. And unlike in tech, they don't get let go if they're bad. They stay around and keep "treating" patients.