He was right and wrong. They do hate us for our freedoms. But they hate us more for the bullshit our intelligence agencies and other slime do in our name. If our only crime was "freedom," they'd (generally) be happy to leave us alone. They've got much bigger issues to deal with, like fighting their fellow Muslims, who are much closer and a more present danger.

So, yes, they hate us for our freedom. And, considering the form some of those freedoms take, they're not even entirely wrong, but that's a separate topic. Point is, yes, we have massive cultural differences, but that is in no way the root cause of any conflict. The US has done nothing but stick their dick in the hornet nest for decades. That's why they hate us.