> The plane is fundamentally unstable because of the huge engines
I'll leave the googling to you, but this isn't true. The plane isn't fundamentally unstable, and certainly not like a modern fly-by-wire fighter.
Outside of the typical flight envelope it absolutely is like a fly by wire fighter.
That's why there's an angle of attack sensor, to keep the plane outside of that failure range.
The 737 Max is unstable in the pitch axis. There is no debate about that.
It might help to read what aerodynamic instability actually means before making such a claim: https://en.wikipedia.org/wiki/Stability_derivatives