Personal bias is irrelevent when one is discussing factual data, such as polling results. There are PLENTY of people on this website who are liberal biased, for example. And they make all sorts of assertions and claims. Yet their claims are not false (or true) because they are biased liberal. Neither are my claims false (or true) because I am biased conservative. Your assertion is therefore irrelevent to this discussion. My personal biases (and yours, and theirs) is irrelevent.