> of course, emacs does not work reliably in windows, so that is another issue
No, it's the same issue. In a Linux shell (say, bash or fish) ctrl-c is not "copy" but "terminate program". Most emacs editing keys (copy-paste, motion) work in the shell as they do in emacs, at least in fish and bash (and probably other places in Linux).
Ctrl-C in Emacs is not "terminate program", it is "start of user command", in most modes. Similarly, even in vi/vim, Ctrl-C does something completely different. So this has nothing to do with the terminal whatsoever.