Indeed, while ensuring that the underperformance and underachievement in those areas doesn't damage the education of others who are performing or performing highly already.
I'm also a strong believer that not everyone is suited to academic study, and we should stop trying to make it appear they are by reducing standards until everyone passes, because in the real world, employers don't make the same allowances. We need to be teaching people to excel at what they can do and want to do, rather than trying to fit them all into the same box.
Yes. You're correct. Parents are trying for it now with "faith" schools. But schools are selecting based on class, not ability.