No. The subject was 20 Observations About Human Nature That Liberals Would Probably Disagree With, not your paraphrase that left out a few key words, like "probably." The word "probably" implies there will be exceptions, but most of these statements are in conflict with the liberal platform. Meanwhile, Don did not actually change the subject. He merely opined that you do not always think like a liberal, in which case your belief does not support your point.