What planet are you visiting from?
There has always been dissention, a sign of a healthy political system, but not like the last 40 years. This goes beyond dissention and is a war in every respect other than gunpowder. There is nothing healthy at all about our present domestic politics.
I never thought I would live to see the day when treason and sedition are used daily as tools of advantage in the most inane arguments devoid of substance. It's like spoiled mentally deficient children wanting a "turn" at an enclusively adult and sober, deadly serious business.
I remember a NRO article many years ago which chronicled some of Jeffersons statements vs. his opponent at the time, and I can't remember if it was Madison or Adams, but whoever it was, was lambasted with this 'you are neither man enough to be up to the challenge of leading or woman enough to to demure', I am paraphrasing, mind you. Jefferson's phrasing was much more incisive, I'm sure.