Who is to blame?

"I am neither advocating, nor even predicting, civil war; neither am I advocating civil disobedience. I am simply pointing out that if the shooting ever does start in earnest, the blame can be laid squarely on the doorstep of those leftists whose mendacity, bad faith, criminal tactics and violent rhetoric will have contributed so much to the perversion of our democratic form of government and the destruction of our individual rights."