Ehrlich hasn't been right about anything in his professional life ever. But showing one of the fundamental defining characteristics of a liberal he has repeatedly failed to learn from his mistakes and keeps doubling down on error. Ehrlich is a joke, but when I suggested this to one of my former academic colleagues, he told me he no longer wanted to speak with me. No loss to me.
I'm down to about 3 liberal acquaintances with whom I still have a semi-cordial relationship. Talk of anything more controversial than the weather is strictly prohibited. I am amazed at how people who are otherwise intelligent (as measured by SAT scores, academic success, etc.) can be so freaking blind when it comes to their left-wing beliefs.