I watched the youtube clip where Scott Adams did his racist star turn, and another where he "explained" himself.

It seemed clear that he knew he would lose the strip. He was quite deliberate about it.

More like a career move than an outburst. Planned cancelling.

Not the quiet part said out loud, but the loud part delivered quietly and calmly.

https://www.npr.org/2023/02/28/1159605012/dilbert-cartoonist-scott-adams-rant-rebuke