Certain suburbs are pretty yuppie, but definitely not all. Really depends on your living needs.
Source: MN native and moved once per year for 10 years straight.
We wanted to move into S. Minneapolis but couldn't justify the high cost. Instead we ended up in the (far) suburbs.
Which part of south minneapolis are you talking about? There is a big difference between southeast and southwest.
I once played a hockey team from the suburbs when I was younger and one of the players had a confederate flag on their helmet and called one of our black players a nigger while on the ice. I am not making this up. Furthermore, all of our minneaplis cops are from the suburbs and they routinely harass minority people and think it's ok to shoot them in the face in north minneapolis.
I really think the minneapolis suburbs are elitist and racist. My source is that I have lived here for over 20 years and now work in the shitty elitist suburbs that I hate. I get a firsthand dosage of the institutionalized racism and elitism every day of my life.
My experience of the suburbs is different from yours.
That said, it's still a great place to live. Some suburbs suck, others are great. Depends on how you want to live.