Forgive me for the tags, couldn't find anymore more appropriate.
whaholy fuck
Here's a really offensive idea, why don't you just have an amnio and if it comes back "your kid will be disabled" STOP HAVING THE KID ANYMORE
OK, OK, that clearly won't solve for Example Kid #1, but still. I'd advocate for that way before I could get on board with making disabled kids permanent kids.
I find this disgusting.