http://www.vox.com/2016/7/25/12256510/republican-party-trump-avik-roy
I don't think this is spot on. While its true that racism is at the heart of the GOP it is only one of the Frankensteinian parts sewed together to make up the GOP.
The other parts (and granted there is some overlap and synergy here):
-the war torture and spy constituency
-the religious hypocrites
-the anti science anti intellectual anti environment groups
-the dishonest and the stupid
Take this unholy alliance and you have the GOP. Each part anti conservative but put together
an evil collection of anti Americans.
I don't need to mention, except for the last mentioned group of the GOP that the dems are similar and alike to the GOP.
If only we could get a party that represented conservatives in America.