The short time I've been on this forum, I've noticed very large numbers of people are heavily into the idea of educational meritocracy. A lot of people love the idea of doing well at school and going to the best universities etc.
Given this, how can they not be at least ambivalent to the grammar school system? As long as it's implemented wholesale (i.e. like it was more or less in the olden days) where's the problem? You do well on the 11+ and you go to a school which is going to get you through your A-levels and not worry too much about having to support anyone not pointed toward university. Surely this is the TSR dream?
If you don't want grammar schools, because they're academically elitist - then surely you're against elite universities too?