OK, In Short

A. It gets down to Duncan claiming that it's the fault of Jesus and the people who try to follow his teachings because Mike Pence who claims to follow his teachings but who, most obviously and flagrantly, does not is a lying, hypocritical asshole.  

B. This is an example of the typical chop-logic of the college-credentialed and others in which a. Jesus is to blame for people who don't do the good things he told them to do but who b. IS to blame for those who do bad things he told them not to do.  And, also c. he is also not to be credited for those who do do the good things he told them to do.   

I am unaware of any other figure in human culture for who this is the case to this extent among allegedly educated people.  

And people think Duncan's a great thinker - He's got a PhD from one of the Ivys, afterall.  Which shows you the status of people who do this, which might be the majority of allegedly college educated Americans, at this point.  Why, they're almost as numerous as people who claim to be Christians but who have no intention of following The Lord as they Praise The Lord and make money off of PTL.  Almost as numerous but not as numerous.  Which is why those people win elections, using the Duncan Blacks of the world to discredit Democrats and liberals. 

Update:  Hey, Duncan Black has been sponsoring lies and libel against me since at least 2012, he still does today.  I blame him for what he keeps on his website, including what the commentators say.  Not to mention when he posts something as stupid as the piece this answers.  If he doesn't like when I push back against that, holding him responsible for what he publishes, to again quote the great Elizabeth Warren, "Good."