flocci, you said: "dd is an absolute star and most of our days are very happy and bright." And yet you still see your dd's life as a tradgedy and say that you would have terminated her life had you known she was going to be born disabled. I find that so incredibly sad.
You said that she notices that she is different. Tbh I think that children only really notice their differences if they are made to feel different iyswim. I am disabled (blind since birth), and although I was always aware that I couldn't see compared to my peers, that was just who I was. I'd never known any different so it didn't matter to me, and still doesn't.
And my life is no less valued than someone who can see. I am independent (fiercely so), I am married and have a 6 year old son, I have held down several jobs including one as a manager (before ds was born - am now a sahm), I help out at school, have just been elected chair of governors and am on the PTA, plus I go in regularly to help out children with reading. The only thing I don't do is drive a car (for obvious reasons), but my disability has never held me back.
There are many people out there with cp who are living totally normal lives. Just look at our paralympians - so many of them have cp, and so many of them have achieved so much more than you or I will. Do you think they see their lives as a tradgedy?
If you weren't fighting the system to get the support your dd needed, and everything she needed was just available, would you still see her life as a tradgedy? Would you still see your family as being damaged? Please think about that, because it is not the disability that is the tradgedy and causing the "damage", it is the stress you are being put under by those who are putting the barriers in your dd's way.
It is possible to see the positives above the negatives. Yes of course there will be negative days, but when all's said and done, you really don't wish your dd wasn't here do you?