Realistically, West Bank will be gone (totally settled, all Palestinians removed) in 15 years. Gaza will further be ghettoized and, pessimistically, will be basically gone in 50 years or so.
Indeed, life will probably continue getting worse for West Bank Palestinians under the Israeli apartheid regime, but there's no reason to believe they'll be literally exterminated.
The only thing left is allowing developers to build on the land and setting up checkpoints to keep the previous owners out.
The point is that they are NOT starting with Israel proper first, where Arabs are and have been citizens for a long time. Palestinians have been elected to the Israeli parliament, and there is an Arab Justice on the Israeli Supreme Court.
How much of that is due to prejudice and how much is due to Muslims generally not joining the military is a question I can't answer.