"...but the election is a [forced]binary choice", yes I'll agree there is no choice now in this manufactured election.
The US are constantly brainwashed into believing things told by politicians in the face of opposing evidence. It's why you continued to believe Progressives wouldn't win against a right winged politician. Years and years of propaganda assaulting the brain. Years and years of believing capitalism is the way.
Biden is the same guy as any other capitalist driven politician/ businessman with the end result in keeping the wealth gap. So, yes, to any fucktards not understanding, they are basically BOTH THE SAME in this regard.
You will ALWAYS get shades/ degrees of difference with neoliberal politics.
As much as you may tout Sanders on your side, he's warning Biden on his 100 day action and more.
Watch it if you want, but the comments section is more interesting to get a view on what the belief is where Biden and anything progressive is concerned.