I would consider people like Danni and Tony way left of your run of the mill midwestern Democrat.
And you couldn't be more wrong as it refers to me. I live in the middle of the midwest, Indianapolis Indiana. I also interact with Indiana Democrats and Republicans as a function of my employment every single day of my life. The number of "left" leaning Democrats in the heartland are few and far between because the politics of this area are basically quite conservative.
In 2008, Obama carried Indiana. Since then the GOP has dominated every level of government throughout the state but for pockets of cities where Democrats have been able to remain competitive.
As with most things, trying to categorize individuals based on their personal views on politics is an inexact science. But one constant remains fairly true: People choose their candidates and their issues based on how it affects them personally or affects their ability to work and live in the manner they choose.
Having said that, Kamala Harris' background of being a prosecutor will serve her well throughout the Midwest because this isn't a coastal community, it's one based on respect and adherence to law and order.
Most people do not choose their presidential candidates based on their VP pick. Pence would have lost his gubernatorial reelection bid in 2016 even as Trump carried the state - he was that unpopular across the board with Dems and Reps alike. But now he's VPOTUS, go figure.
Biden's appeal as a life-long regular Joe who's never lost touch with the common man is not being threatened by whatever garbage Trump and his Death Star throw at him. The union guys know Joe has had their backs and understands their plight. They were snowed into believing that Trump was the same type of guy back in 2016, but that illusion is destroyed. While many continue to back Trump, they do so because of white grievance, not populist policies - of which Trump has effectively none at this point.
Harris is non-threatening to the masses (who's afraid of former law enforcement being an out of control radical threat to order?) while being inspirational to a large swath of needed voters all across America.
So no, I couldn't be further from the "hardcore left" if I tried. You have no idea what motivates people where you do not live. You only think that you do.