If you look at the budgets, realize that a lot of the shortfall is coming out of educating kids, digging new wells - that sort of thing. Outside of contacting our congresspeople, there isn't a whole lot an American can do to better the situation. Among the things we can do to help the people being harmed, there's ANERA. (disclaimer, I've been a supporter for the last few decades; your article has prompted me to send them another couple hundred dollars.) If you hire contract software work, there are Palestinian engineers (both software and remote IT support) on UpWork (something I've done in the past with good results).