Yaron Brook of the Ayn Rand Institute offers a great analysis of why some libertarians hate America and Israel more than they hate Hamas and other totalitarian gangs:
I think that the libertarians who tend to be anti-Israel . . . tend to be anarchists. They tend to have a deep rooted hatred of government. And it’s interesting [because] they tend to hate free governments more than they hate totalitarian governments. They tend to focus their hatred much more on the American government [and] on the Israeli government than they do on Hamas. . . .