Ethnic issues aside, I think the OP's most important point is that schools are not the only thing that goes into education. Their family, community and friends

Ethnic issues aside, I think the OP's most important point is that schools are not the only thing that goes into education. Their family, community and friends might even be more important. Imagine you took a school performing in the top 5% academically and swap the students with a school performing in the bottom 5%. Which do you think will perform better? Universities ares someplace where this is widely accepted. Go to a good Uni because that's where the good students are. It probably works for primary schools too.