Wow, he seriously fucked this one up. The proper phonetic translation of the takbir is "Allāhu akbar." There's a very distinct difference in pronunciation between "Allāhu" and "Allah". I certainly didn't hear the "u" syllable after "-ah," although I doubtfully would've heard anything more than gibberish w/o his guidance. Secondly, the takbir has multiple (and widespread) uses in Islamic culture, and might be considered roughly equivalent to the Christian "Hallelujah." We don't get jumpy when somebody yells "Hallelujah" in the streets, but it's roughly equivalent to the takbir. Now, here's my favorite part, because it shows what an utter moron this guy is. Just moments into discussing the origins of the phrase, he mentions how Turkish people speak Turkish and acknowledges that it may counter his claim. But it really doesn't. Firstly, Arabic is the holy language of Islam, so even Turkish Muslims speak it. Secondly, whatever insidious force is at work, inserting these "horrible" messages of Islam (like praising god is the end of the world) into child's playthings, could easily have just ignored the Turkish origin of their character and inserted the phrase.
The coup de grace in this video was his first showing 9/11 footage and then invoking the feelings of the families of the victims of the 9/11 attacks. Because it showed what a douchebag this guy really is.