But even if they do become more like comps, they might, in some areas of very low attainment, become more like those comps where being more academically inclined is ok, and wanting to push on at a faster rate is not a reason to be picked on, which would be a step in the right direction. Then, those not at the grammar might be able to access a way of learning more appropriate to their strengths and ways of learning, without always being second best and losing interest.
I was educated at a comprehensive which was, for me, just awful. My parents both went to a secondary modern, one through their choice (shock horror), and one because they had missed a lot of primary school due to ill health and did not pass the 11 plus. Both had siblings who went to grammar schools and one sibling went to a very good independent on a full scholarship. Neither felt cheated or second rate. Both classes produced people who went on to become doctors, lawyers, pilots, successful business people etc, as was I, however they have nothing but praise for, and happy memories of their schools. My experience in a comprehensive was far worse, and I have virtually no good memories of secondary school, even though there were some good teachers who were working very hard, and doing a great job, in trying circumstances.