Hater's will always hate, eventually their heads explode and they resort to violence. The US has a significant sway in supporting Israel and the Jewish people, simply because when people immigrated to the US they left most of their European racial hatred's such as that over Jews, Gypsies and people that were different behind.
When you support the existence of a nation, you don't have to accept everything that is going on, I doubt any Israeli organization in the US asks for blind obedience. There are plenty of secular and muslim political parties in Israel that disagree with the disproportionate level of religion in their society (especially in Jerusalem), as well as over Israeli policy in regards to the Palestinians.
But a distinction has to be made from criticism of a nation, accepting it exists and that the people have a right to self-determination, to demonization of an entire nation and Jewish people on the basis of falsified documents and unproven allegations which take virtually all their 'facts' from a work of fiction called the "Protocols of Zion (
The Protocols of the Elders of Zion - Wikipedia, the free encyclopedia )". Which itself was written in Russia by people who hated Jews, but that didn't stop it being reproduced and recopied, and it is now believed true and totally factual by all those Muslim nations surrounding Israel.