A fairly moot point. Do you think most C developers can write safe C code? The 2 I've encountered in my short career basically have no idea what they're doing (which I suspect is partly why they stuck with C instead of exploring alternative languages).

If that were the case it would make the situation even worse. It means the whole "write performance critical parts in C" argument is bogus.

To answer your original question - no, but there's less C code than the equivalent C-only program, so you're still better off. Or if your argument is that C is a security nightmare (which you won't find much argument from me on), replace C/CPython with Java/Jython.

You could write performance critical parts in a safer language, though, such as Rust (disclaimer: I work on Rust). C isn't the only option here.