It's not at all a marketing slogan. The woke people have a problem though. To cancel someone properly they have to possess a desire to stay in the social strata they are in. For example, a developer makes a Python joke and loses their job over it. Those developers had a desire to stay in their industry and thus canceling worked on them. "Cancel culture" is the term for the phenomenon of people actively looking for opportunities to cancel someone. I've seen it at two companies now where people seem to be deliberately offended at something no matter how mundane. This is the "culture" part of "cancel culture".

Crumb doesn't care what social strata he is in. There are plenty of people like him who don't care. These types of people are impossible to cancel because no matter what social mechanism you use to bully them it will not work. It is far easier to cancel someone who needs some social status to eat than it is to cancel someone who couldn't care how he eats.