Sorry, but where is the difference from a secure-system that allows central control - and a male-ware backdoored system?

All that is diffrent is the promise of non-maliciousness. Which often does not hold up. Cause money is corrosive to those little centralized empires of "all-can-fail-but-me".

Security is diversity, as in having a non-centrally controllable ecosystem, that is not a mono-culture. Your updates are the danger, your urge for control is the forrest fire.

Linux is not secure because its updated often. As package maintainer take-overs have show- that is even a vector. Its secure, because its fragmented into a thousand small populations, which offer no real financially interesting attack vector for a large scale take over.