https://duckduckgo.com/?t=palemoon&q...+choice&ia=web
Not my assertion, it's from Kanye West. The more traditional formulation (I would presume) is 'It's better to die on you feet than live on your knees."
The point made by Scott Adams is that blacks could be a powerful voting block if they weren't Democrat by default. And they understood that white people died to end slavery (at least locally).