What the hell is there left to write?

MODS

OH GOD NO HE'S BACK GOD HELP US ALL

Right on, my dude. Make the codebase twice as large and reinvent the wheel all the time, so that we can finally enjoy our glorious and "pure" C, amirite?

C++ is bad, but C is a lot worse. Not sure what your point is.

Literally everything has to be written from the ground up. Listen to the Multics nigger.

No, C++ is an absolute trainwreck. Anything that you want to use C++ for you should probably use C for. If you really need OOP, or an expansive standard library use D.

How comes we don't have modern time sharing systems?

D is absolutely not an option if you don't want a garbage collector. Disabling it takes out the standard library alongs with it.
And C++ is not only about OOP.

Stop eating cat-v memes.

If you don't want a garbage collector use Rust. Literally anything is better than C++ (except Go, I have no idea how that monstrosity exists).