Carolina sure has more then enough ability to hold off any Russian girls. Even with mistakes, there's no denying that she is a far superior skater than any of them.
I would say it depends on the circumstances. I think Liza has already managed to beat her last season at GP event. Adelina beat her in SP at Europeans this year. So Carolina is definitely beatable. The result depends on how they all skate from competition to competition, but I wouldn't say universally that Carolina will always win.