Tries to draw you to specific things (towards the most conservative schools...where politics matters) and way from general principles. Tries to nitpick one government benefit (tax exempt status) from another (government funding), and then attacks you personally because you are obviously not an expert.
He knows that there is liberal bias, so he wants to steer you away from it, characterize your position as more extreme than it really is, and then try to discredit the distracted, off course, extreme version of you that he creates. Basically, how he argues is an example of the evils that you are posting about in the first place. He verifies that the biased behavior exists while he tries to deny it exists.
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