There isnt anything inately bad about sugar
Well in moderation sugar isn't too bad. The problem comes when food manufacturers start adding sugar to foods so it will taste better and if you are not paying attention to the content you can consume a significant amount in a day.
My take on this is that the DNC has never understood that to win the presidency in the last 20 years you need to be a fire brand.
I think this stared in 2008 with Obama who won I believe because he fired up the base with great speeches about hope and change. It didn't really happen, BUT the man knew how to give a speech. That got people inspired to do something and they voted.
Bernie was another fire brand - told it like it was and it appealed to a large population.
trump won using the same idea, but just the opposite of hope and change yet it worked. It tapped into a visceral and deep frustration that this country has left them behind.
The modern view of the American president to the population is less of a wonky politician and more of a cheerleader for big ideas, even if those ideas are abhorrent and exceedingly horrifying.
Harris just wasn't the person to pull this off, she was too wonky and it felt like the entire campaign was playing the old card of "we are not trump" Instead if they really wanted to win they would have found ( 2 years ago) a feisty out spoken progressive leaning firebrand that would have inspired people to vote for something better.
The only reason that (bland) Biden won was because of how badly trump fucked up the Covid response.