A reasonable person understands running the same strategy over and over and expecting different results is literally the definition of insanity.

But it's perfectly ok for the DNC to trot out nothing but the status quo for their voters? After over a decade, they can't promise anything beyond "not fascism" to their voters and the rest of the population?

And I already answered you: Harris needed to convince voters to vot for her, or against Trump. That's a politicians job during a campaign, and she failed miserably.

So now explain to me why the average voter has to keep swallowing a shit sandwich, but the political party that keeps failing using the same failed strategy, why don't they have to change? Why is it so unreasonable for them to adopt more popular, progressive policies that voters actually want?

I'll wait, you can go ahead and explain that.