Why Is America so lenient on Israel, and very flexible in its foreign policy in the middle east?

Well I believe that rationalization, and diplomacy works perfectly when without bias. So why does America continue to aid Israel in its middle eastern endeavors? I have an uncle who is a reporter and said when he went to "Palestine" or what people today call Israel was that the Israeles are killing them, ging them, raping their women, beheading children and a lot more. He told me that they have to be home by nine because they are blockaded inside the strips. Ive been looking up other nations and reading books on this controversial topic. Every one in the world hates Israel "not jews" and yes there is a difference, and realize what Israel is doing wrong so why doesn't America. Black people didnt want privileges after slavery, they didn't ask for a safe haven, but lived life. So who is AIPAC and what do people think about this subject??? Please no racism, slander of any sort or ill flag you. I simply would like to learn more about this tragedy...genocide thats the most suitable word I think.