Yes, I firmly believe there is a diplomatic solution to the Israel-Palestine issue. We just haven’t found it yet. What is the alternative? War? Just as with North Korea, all diplomatic solutions must be explored. There are currently two potentially viable solutions being discussed: a one-state solution and a two-state solution.
Who knows, somebody really smart might come up with a third solution, although I doubt that will be Donald Trump or Jared Kushner. But, as long as both sides keep trying to solve the issue diplomatically, I realistically do believe it will happen. I know it has already taken years, but things are changing and there has to be hope for the future.