Enough already, the committee needs to be less prideful and just add complete macros/metaprogramming to the language already in C++14 and let apparently smart programmers who can disentangle variadic type templates to stop wasting brainpower and valuable time doing that and just write the compile-time transformations they want to have happen.
I'm not sure if java or C# can easily jit to have something that is close to machine code. Anyway having machine code directly (and no need for VM) is useful if you want to reduce the overhead and fully exploit your hardware.
Surely it's not for students or for casual programmers, but it has a use.
I can't remember when some larger projects rewritten in C++ turned out to be slower. Build tools, developing tools are superior to those 10 years ago, and the compiler(s) is still the best optimizer there is for production code.
Working in C++ today is easy. I sometimes feel a bit strange when I find that I'm oblivious about some hardships C++ developers had in the past, and today I didn't even know you can do it the hard way.
(it will be foss of course but nothing is published yet)
Edit: Or, you know, write a different macro preprocessor for C++. There's nothing special about the standard CPP other than coming bundled with the compiler.