[codebolt]

Agreed. If you look at the actions of either Iran, Saudi Arabia or Israel you can easily find many things that seem morally indefensible from a purely humanistic standpoint.

Whatever the mechanism the US has for picking it's allies, it's pretty clear that it's not simply based on some rigorous moral analysis of the different actors. As long as the Iranian regime insists on maintaining "Death to America" as their political slogan, it's understandable that the US will maintain some level of hostility. But to try and paint it as Iran being purely evil and Israel/SA being purely good (or vice versa) is disingenuous.