You're missing the point: writing secure code is categorically impossible, no matter what the language. That's very much different from 'other languages allow some people to write insecure code occasionally'. Every piece of code, every system ever built and every piece of hardware ever designed had bugs in it and if that item was supposed to be secure over time it will turn out that it wasn't. So the best you can hope for is that an item is obsoleted before you (or an adversary) detects its flaws and you're going to be fighting a rearguard action.

The whole idea that many eyes or 'safe' languages or some other magic bullet are going to solve this is so far off-base that it makes productive discussion impossible because everybody starts to focus on the particular tool at hand whereas the real problem is an instance of of the class 'architecture', not of the class 'tool'.