What you are saying is empirically false. Change in a single line of executed code (sometimes even a single character!) can be the difference between a secure and non-secure system.
This must mean that you have been paid not to understand these things. Or perhaps you would be punished at work if you internalized reality and spoke up. In either case, I don't think your personal emotional landscape should take precedence over things that have been proven and are trivial to demonstrate.
> Change in a single line of executed code (sometimes even a single character!) can be the difference between a secure and non-secure system.
This is kind of pointless, nobody is going to audit every single instruction in the Linux kernel or any complex software product.