I don't feel like I have to use every single feature of a language. I prefer C++ over C for: namespaces, overloads, encapsulation and user defined types. E.g. I'd rather write simple expressions for vector math than a bunch of function calls. I'd rather have the compiler enforce the type invariants than do runtime checks everywhere. I'd rather have my ids without prefixes to evade name conflicts etc. etc.

As for your proposal - why? I can already disable exceptions and RTTI with compiler switches. And is it really a sane idea to spin off a new language if you don't like some library?