He was paid to teach geography
I didn't hear any mention of geography in those audio clips. He claims he was leading discussion but all I heard was a prolonged and one-sided anti-Bush rant. Perhaps there was some actual two-way discussion in the full recording but none in the clips that I heard.
It's as predictable as the sunrise that someone like you would support him but his employers and the parents who pay his salary may be inclined to disagree. They hired him to teach geography, not to indoctrinate their kids with incredibly ignorant rants.