Political incivility has been around for far longer than that and cannot be blamed on the GOP.  It, sadly, seems to be a part of politics from the word go.  For instance, John Adams was accused of being an agent for the British and a traitor by his political opponents.  This is not to mention people beating each other with canes and getting into duels as a way to express displeasure with a political view.  Criticize incivility all you want, but do not blame the GOP for it.  I find that if the incivility is against someone we disagree with then we will cheer it as a "speaking truth", but then lament when our preferred candidate receives the same treatment.