also, taint checking built into the language to enforce sanitization: https://en.wikipedia.org/wiki/Taint_checking
There's an entire industry, probably worth hundreds of billions of dollars, built around trying to detect insecure code and force it to be less insecure. Meanwhile, this one old language that nobody uses has a single option you enable to be [more] secure by default. And I'll bet you a billion dollars the reason other languages don't have it is "the design doesn't look very clean".