Democratic Primaries

Which is why a more strategic pick than Klobuchar is needed for VP.

1- Minnesota is not solid blue. It is currently listed as "lean Dem" by Cook Political Report, and my point was about
the Midwest as a region rather than a specific state

No. While you are entitled to your own opinion, you're not to your own facts. Minnesota is a solid blue state. It has a Democratic Governor and both Senators are Democrats. It hasn't voted for a Republican for President since 1972. And in the last poll by the Minneapolis Star Tribune has Biden beating Trump by 12 points.

Also unfortunately the electoral college is by state not by region, so what swing state does Klobuchar help flip.

2- I acknowledge both are basically center left, which is where the Democrats generally win (see Carter and Clinton)

Biden is center left and is the nominee. He needs a VP that is more progressive or he's making the same mistake that Clinton did in 16.

3- I live in SC, where Biden won 49% of the vote in a field of 7 candidates, primarily as a result of large majorities of black voters

True, but Clinton won the AA vote overwhelmingly in both the primaries and election. But they still didn't vote in the same numbers they did for Obama. Klobuchar does noting to energize that vote.

4- I never mentioned Franken; I said that there would, unlike several other states, be a guaranteed Democratic replacement

I know but the hidden agenda of of many people pushing Kobuchar for VP is the delusion that he'll be appointed to her seat.

My personal favorite would be Harris, followed by Warren.

Both of whom come from solid blue states and don't help flip a swing state.