No offense, but that's just not true. The Gopher football team has had almost no contribution from the public HS's from the state's largest city, but the city of MPLS has put out a lot of kids.
Just last season:
Kyle Henderson, Hageman, Pride, and I believe Kim Royston (he might be from BP) are all Mpls kids.
Isaac Hayes is a Mpls kid.
The plight of inner city schools is a big problem. However, I don't think it has hardly any ramifications on football. Those kids are still playing football growing up and they are still a pretty large part of our talent base. More and more of these kids are starting have suburban addresses (because the open enrollment stuff has been curbed, slightly). I just don't see how it affects the Gophers that Hageman went to Washburn compared to Henderson going to Armstrong. It seems like it's semantics (football wise). As someone else pointed out, this happens in a ton of cities throughout America. The inner cities simply do not have the funds, especially with no child left behind, to be competitive as a school with the private and suburban schools, and so the kids get on buses. I remember when Hoop Dreams came out and people were shocked about William Gates hopping a bus to suburban Chicago to play basketball, well, that's a really common story throughout the country with urban high school athletes.
So, I do believe it's a problem and it is bad for society. However, football/basketball wise....I don't think it has any impact.