It's incredibly hard to prove things like this so if you don't believe it you don't, but I don't think the effects are just meant to be directly bringing food to Gaza. If that were the only way to measure it you'd be right. But the only thing which could possibly stop Israel is strong political pressure from the West and we are getting closer to that, the world is angry about it in a way they weren't before. Even Germany, the most hard-line Israel supporter is changing its stance. These massive protests in Italy wouldn't have been like this otherwise. Yeah maybe I'm wrong because these things are nebulous and slow but that's how activism is and I think those things are real changes.