Why do conservatives always use terms like "inciting class hatred" or "causing division"? There has never been a time in any part of human history when class hatred and class struggle in some for didn't exist, and there has never been a time in THIS country's existence when everybody was united in unquestioning support of whatever it was conservatives supported at that moment and that was all there was to say.
It is natural and inevitable for the many to chafe under the unjust dominance of the few, and it is natural for more than one viewpoint to exist in the same country at the same time.