Hyperbole is a useful tool in presenting an argument. One of its greatest advantages is that someone who is uninterested in engaging in good faith will often nitpick the hyperbole instead of addressing the fundamental argument. This is a great way to tell when someone can't address the argument, or is paid to have a conflicting opinion.

And unfortunately this is our reality--Israel is spending hundreds of millions of dollars on various forms of PR, which means using hyperbole to describe Israel actually helps you filter out the people who are paid to make Israel look good from the people who are paying Israel via taxes.