The Israelis are workinf on supplying themselves with water, why supply people that shoot missiles at them?

Why indeed!

Nobody's asking them to supply the Palestinians with water. They are asking them to stop stealing the Palestinians' water.

If you can't see the difference between these two things, you are either being willfully blind, or you are stunned as my arse.

And since you've gone down that line of reasoning, why the hell should the Palestinians be expected to supply water to people who are shooting at them (the Israelis)?

You support the continued ethnic cleansing of the Palestinians by the Israelis.