The article has good points, at grassroots level there is a desire for peace, but at leadership level the actions speak otherwise, and settlement expansion is a clear example.

The world has tried to rebuild Palestinian institutions and economy many times, just to have Israel bulldoze everything when the peace fails and Palestinian resistance mushrooms. That's the big difference, we help build anything in Israel it will endure and flourish, same thing you do in West bank you have to be open to Israel Armed forces acting under government to break it down...

The west does not have unlimited resources, hence an independent, an independent Palestinian state would be a better investment to build up rather then cycles of building and destruction.
I do like the idea of bringing Israeli and Palestinian children together perhaps in hope to remove animosity from future generation, but once again you can create friendships but as long as there is relationship of occupation.