I’m not sure what your definition of incrementalism is. A law passing or court ruling on a single issue is not but a reform of a law is?
My point was not defending some ill-defined “incrementalism” but to just say that all issues won’t get addressed at once. Look at the ACA, watered down and not enough but it did get millions of people insurance. It took so much political capital to get it in that form and it still became a beating stick for the Right for decades. It’s a ad campaign against billionaires that’s needed for anything expanding the government.
People don’t want to vote for anyone who can’t move a mountain in less than 4 years, or in this case someone who can’t move a hundred mountains.

And it shares a name with Amazons VSCode fork focused on AI development