OK, teachers are there to teach academic subjects, and do some pastoral care, but we are NOT your child's parent, and his social skills, or lack of, are down to you. If you want your ds educated in a way that follows your child rearing philosophy, then I'm afraid that you will have to home ed him permanently, or pay for a tutor. Schools have rules, otherwise there would be chaos, and no teaching would be done.
Children have to learn to follow some rules, otherwise we are doing them no favours in preparing them for life outside school, when they leave education. How will your ds hack it in a work environment if he can't cope with criticism, constructive or otherwise; or follow the rules of the organisation he works for?
The other thing that strikes me, and I have read some of your other threads on this, is that you are wanting special treatment for ds. That is totally divisive, and will soon be noticed by the other children, and they will act accordingly. You are setting him up for a problem here. Children are some of the cruellest beings on the planet, so be careful.
If all the teachers are telling him off, could it just be possible that they are right? We are professional reasonable people on the whole, and will go out of our way to help children. However, if there is something that he is doing that all the teachers are complaining about, then listen to them. They are the ones who deal with children on a daily basis, and will have seen all types of behaviour before. I had this with ds at his prep; I worked on the problem with him, and things improved at school. The same problem is cropping up at home and in secondary school, and again, he needs reminding that he mustn't talk over people; and needs to put his hand up before answering.
The school is run for many children, not just your ds, and it is unreasonable to expect his needs to be put before others. The other parents are paying fees too, and expect value for money. You have not got the money to pay the fees....don't expect the other parents to subsidise you, that would really tick me off, and is unfair to them.
You may also like to consider that however 'gifted' a child may be, they have to demonstrate to their teachers that they can handle the basics before being given more challenging work. There is little point in giving a student calculus to tackle if he can't handle basic numeracy for example. If your ds isn't doing the basics well and competently, I wouldn't give him more advanced work until I was happy he could handle it and that it wouldn't knock his confidence if he got it wrong, or couldn't quite deal with it.
Please think about the label you are putting on your son. He needs to be a child and do the childish things, rather than be hot housed. My ds can be challenging, and he was considered very bright by his prep, but I didn't make an issue of it, as I wanted him to enjoy his education, not be weighed down by a label which meant there was a constant expectation that he would always achieve more academically than anyone else. That's a sure fire way to turn them off completely, and for them to be called a geek, a boff and a swot at school, which for the child are negative and damaging labels, so they stop trying. I have seen this with my ds, and with the gifted, able and talented students that I've taught.
Lastly, and I'm sorry that this is a long post, step back and look at your attitude to the school. I know that we all get wrapped up in our little darlings and think that the world revolves around them; it doesn't. From what I've read on here, I would have run the other way down the corridor if I'd seen you coming, to discuss your ds with me, as it always seems to be the school or teachers that are in the wrong. The school has a valid point of view as well. You need to stop and listen to them, and take what they say on board. You have a law qualification so therefore you must have been trained to have some objectivity; use it, please. Schools try to do their best for their students; the private ones wouldn't stay in business long if they weren't good at it, so you need to listen to what they say. There is also a bush telegraph between schools, so any reputation you have at this school as an unreasonable parent will have made / will make it's way to the new school, so be warned!
End of post. Hope it helps.