"why there is such polarization?"
That's the topic, but damn, look what happened. Polarized and polarizing rhetoric.
It's not like we needed more examples of the phenomenon. This being Flame, there's hardly anything that could be called off-topic, but using that important question as another pretext for another round of partisanship is about as close to offtopic as it gets.
Tom, are you trying to prevent discussion of that question? Why the heavy flak barrage?