The story of Bonhoffer touched him deeply and changed him from a militant Christian into a critic of the corrupt and very un-Christian madness we see today.
The blurb of his book "Costly Grace":
The author recalls his life as a controversial Washington, D.C. evangelical minister and spiritual advisor to America's political class. He begins with his conversion from Judaism to born-again Christianity, and then finding his calling in public ministry. He chronicles his years as an activist leader of the most extreme wing of the anti-abortion movement, brazenly mixing ministry with Republican political activism. Finally he reflects on his unconscious abandonment of Christian principles in the face of fame and influence, and ultimately his return to the lessons Jesus imparted. Today Schenck works to liberate the evangelical community from a politicized gospel, urging partisan conservatives to move beyond social battles and forsake the politics of hate, fear, and violence.
https://en.wikipedia.org/wiki/Rob_Schenck
The movement of many so-called Christians going to the dark side happened over many years, and since few, perhaps nobody, spoke against it, the dark side has almost completely taken over a large swath of them.
It starts with one or two. Where it goes depends on the little compassion and true faith (not the faith in dictators) left in their hearts.
History "rhyming" again.