People are afraid of what they don't understand.

If this is what he mean at a senate hearing when he talks about a new anti-tank weapon, I’m done

Try explaining to experts, like Tom Nichols, that 3rd world countries can't outproduce 1st world countries and then you'll see "threatened by thinking." Foreign policy is probably the one area that was already in such dire straits that even the Trump administration may struggle to make any worse.