Thank you for clarifying that Bitcoin is fundamentally a protocol. However, if the network has de facto settled on a certain implementation, then what does that say?

Linux and PostgreSQL et al would exhibit characteristics of whatever their respective gatekeepers let in.

Btw, I'm not making a definitive statement about Bitcoin's insecurity per se. I'm rather via process of invalidation querying how the ubiquitous claim, that it is an unhackable, secure (basically untouchable) money alternative to fiat, actually holds.