A physiological pain response doesn't mean someone is feeling pain. Bodies are weird like that. Even if it did, surely that means we should consider months of potential agony with certain conditions all the more seriously. I know when my grandmother's medical care was rescinded, there was definitely a chance of recovery, but she'd spent so long in hospital, in so much pain, with so little quality of life, choices were made by the people who loved her the most. Even if it upset me at the time, because I was only 15 and was hanging on to that fleeting chance, my feelings on that don't win out. That happens all the time, it's something many wrestle with, and I do think the comparison has merit when we're discussing this type of abortion of often wanted children.
For those who think 'forced birth' is emotive, the UN, WHO, and pretty much all similar organizations use 'forced pregnancy' when discussing lack of abortion access. Forced pregnancies lead to forced births. Plenty of women who go through it use that language. I had a friend die due to complications from a forced pregnancy and her sisters used that language. I don't think those who haven't been affected should dismiss the language choice just because they don't like the emotions it brings up.
What do people think happens to the kids that result, because guess what - if it sucks to know people would abort you and that it's legal to do so, imagine the pain of the statistics that disabled kids are more likely to be abused and killed by our parents and carers, and those murderers are less likely to face any consequences. If anything, they get sympathy. Honestly, knowing my mother wanted to abort me, but couldn't due to lack of access and acceptability has never been a big issue - I can never make right what was done to her, and she can't make right what was done to me - but seeing so many other adults not only allowed but made excuses for the abuse I suffered as the unwanted fucked up kid, seeing people treat my friend's death as a noble sacrifice, that is what made me feel that we were seen as less valuable as people, our lives were just ideological tools that meant nothing in their reality beyond that.
There are a lot of ways to help disabled kids and their families. Removing abortion access isn't really going do much and personally, I think abortion should be full decriminalized and leave it up to the pregnant woman and the medical professionals.