Posieparker, you write,
" I would be nothing short of devastated if my child had SLD when born. ...I have three young children and to throw a SLD child into the mix would take time away from them that I don't have."
That goes back to "how does society support those of us that have a child with additional needs". If left to care alone for a child with great needs, we'd all worry.
I won't say it's been easy with our own son. Although his disability is 'moderate', it has meant we have had to change schools and go through hell with teachers and appeals and loss of self-confidence in him from time to time. He's had to fight so much harder for everything, with us supporting him for all we're worth. But he is so loved, just for being him. His friends love him, his family loves him, and everything he can do well is cherished and appreciated. People who care about him really are supportive, really do offer him the extra help he needs now. He's a totally splendid young man.
As for me, as I explained much earlier in this thread, I'm on the autistic spectrum. If my parents had realised, perhaps they would have had me aborted, fearing that 'me as a young child' was what I would be like all my life. It wasn't. I was fortunate enough to have the routine and order and clarity I needed, plus truly brilliant friends who taught me social skills over the years.
I'm still really happy to be alive, and so's son. I have many friends with profound disabilities and I can't find anyone in their lives who wishes they hadn't been born. I also think all siblings find reasons to dislike each other, and feel that they'd have got more attention if their brother/sister hadn't been born, at some point. It's not a reason to want a child not to exist.