How or why Scott Adams went completely of the rails is perhaps something we'll sadly never understand. Was this opinions he'd always had, but suppressed, did he somehow become radicalized or was it perhaps medically induced, e.g. a stroke or something. It was incredibly sad to see him throw away his life's work and go down a path most of us at least hadn't foreseen and die having alienated his fans.
You’re probably thinking of politics. You may not have read some of his more philosophical and metaphysical works, which were downright kooky. For example he thought that the universe was the dust of a god that had killed itself.