I've never heard Matthew 18:5-6 applied quite this way, but Gagdad Bob makes a good case:
Chaos, Cosmos, and Logos
If anyone of you moonbats causes one of these little ones to reject Truth for the intellectual crack of leftism -- look at me, Chomsky, I'm talking to you -- if any of you little tenuremites eating away at the spiritual foundation of the West do this, it would be better for you to have a large millstone hung around your pencil neck and drowned in the depths of your own bullshit.Perhaps a little bit of stretched exegesis, but then again, maybe not.
Put another way, leftism is simply intellectual sanction for a lifetime of adolescent rebellion, something which is again self-evident if you merely consider what leftists say -- especially at their many demon-strations -- and how they govern. Obviously, there are no proper adults on Air America. There is no coherent philosophy on dailykos. There is no mature reflection at huffingtonpost. There is no intellectual sophistication at The Nation. There is no wisdom in the New York Times idiotorial pages. There is no Light in the UN, just a family of organized grime. Why is that?