CarolC-You didn't answer my question. Do you or do you not consider terrorist attacks a valid and moral tool for the Palestinian people?

I do not consider any attacks against civilians a valid or moral tool for anyone to use against another people, whether it's Palestinians who are doing it, or the IDF. If the Palestinians attack military personnel, in the absence of a "recognised" military of their own, I don't think I would categorize them as "terrorists".

Further, why do you think that things are going to change considerably from the way they have been in the last 30+ years?

What makes you think what I said means I think anything is going to change? The expulsion of all Palestinians from Israel and the Occupied Territories looks to me like nothing more than the completion of a process that was started even before the inception of the State of Israel. The change would be if this process were to be stopped before it is completed.