Honestly, I don’t think the American people have the stomach for another Middle Eastern war, and Israel has shown in the past that if you recognize their right to exist in some form, they’ll leave you the hell alone - see Egypt, Jordan, etc.
So if he pulled back from those two rivalries, I doubt that hurts him much. I’d see it as riskier because of internal power struggles and possibly from regional rivals, but who knows.
Guy’s in his mid 80s and there’s a decent chance Mossad knows exactly where he is. He’s got one foot on a banana peel and the other foot in the grave regardless.