One more thing, then I'll be gone again, I promise.
If Egypt has closed its borders to the Gazans and is blockading the Strip, too, then it's hardly a Muslims vs Jews thing. However, if you take a look at Hamas' Charter, it calls for murdering Jews everywhere, not just in Israel, so maybe that's why they attacked Israel, but not Egypt, over all this.
There are a lot of things I don't want my tax money going for, also, but them's the lumps. We give Israel money, but it's mandated to be spent on American goods, mostly military stuff. So, like a lot of foreign aid, it's more like a money laundering situation - we give them public (taxpayer) money, they take a cut and then repatriate the money and it's turned into private industry profits.
America doesn't support Israel for the love of Jews. Israel apparently plays a crucial role for us in the Middle East and we're paying for those services.