The extremists in both parties are too chickenshit to form their own party and prefer to ride the coat-tails of the main parties...
its the flaw with a two party system that results in more difficulty in the main parties trying to pass their agenda because they're being held hostage by a handful of individuals with extremist ideology.
- The traitors in each party are the ones that jump ship because they feel/see their extremist egos aren't being massaged...they then jump to the other party to later discover (even though they already knew it) they aren't welcome there too.

I started seeing this in the founding of the Tea Party
or the beginning of the Obama years...the extremist ideology picked up steam going into the 2016 Election year.
Today, it's more radical than ever, and they are too stupid to understand why the country is so divided nor will they understand the reasons behind the growing number of hate crimes.
wrbtrader