Software isn’t unpredictable. Issues that are known can be resolved. Unknown hardware issues are just as bad, and they do happen. Most safety recalls are mechanical in nature today.
Fly-by-wire systems in airplanes are way more complicated than cars and they have excellent safety records, which even improved as those systems became widespread.
The reason so much bad software exists in the world is because of the prevalence of people writing software without an accredited engineering education, licensing, or regulation. Software can be good if built to the engineering standards expected of any other engineering discipline.
Fly-by-wire systems in airplanes are way more complicated than cars and they have excellent safety records, which even improved as those systems became widespread.
The reason so much bad software exists in the world is because of the prevalence of people writing software without an accredited engineering education, licensing, or regulation. Software can be good if built to the engineering standards expected of any other engineering discipline.