Asv far as the medinah, I said a long time ago that history will determine the winner. The Sadducees, the Karaim and others disappeared and it was rabbinic Judaism that survived. Same today. Orthodox Judaims has survived many centuries and continues to rebound. None of us will be here in a hundred years time- those living then will determine who is the winner.
The Kareties are still around, I think there 40,000 of them around