I went to a Grammar school and am finishing a PhD. Pretty damn nerdy. These gifted wonder kids you speak of... you reckon they aren't going to bully? I was selected at the age of 11 and told how magnificent I was. Growing up was still tough.
"It'll all be ok if we keep away from the riff-raff" doesn't do anything but say "we can only really afford to educate X amount of kids". This lot are brick layers.
Of course who am I talking to? I don't know. Might be somebody who thinks gifted means Daddy has a yacht.