That’s a shame.
I wish I hadn’t just learned that.
I knew about Meathead (how could you not) but was under the impression that Carl was at least apolitical. Boy, was I wrong.
Going back through the decades he didn’t seem to be from all his talk show appearances. My sense was exactly yours. One thing I have learnt from the last 20 years or so on FR and other sites is that in the artistic community assume leftist until proven otherwise. It is their default position.