Notice that the response of the head of the Muslim American Society's Philadelphia chapter, who said that the video hadn't been vetted before being posted. He did not deny that the children are being taught Islamist hatred and violence, just the same as millions and millions of Muslim children across the world are. He just basically said, "If we'd known someone would notice, and bother to translate it, and publicize it, we wouldn't have posted the video.
https://www.ynetnews.com/articles/0,...505222,00.html
You see, it's not yet time for Muslims to show the true face of Islam in America. They're still in the stage of friendly persuasion. Once they are strong enough, then it will be time for violent jihad. So the director regrets that such a video should be posted - it's too early. But he doesn't deny that this is what the children are being taught. And yes, this type of education is very common, because Saudi Arabia is funding Islamic education across the world, including the US, and has been for many years - probably 40 years. The education that they are providing is strict Salafism, which has spread throughout the world. It's essentially the same as Nazism - except that anyone can join, you just have to convert to Islam and follow the strict rules of Salafist Islam.