That DS is the only reason - it isn't.
That they are wholly representative of the lives that would not exist if someone chooses to abort - they are not, they are the extreme end of a scale, the other end of that scale they are not likely to be shown, let alone imagine!
That the world wants rid of disabled people - I don't believe thats true, I think some people think that but some people think abhorrent things about any group you care to name.
They're pushed to make it personal and keep it personal - I could do the same, we all could - if our mothers had decided to abort, we would not be here.
It isn't a useful argument for the whole population though is it - because not every disabled child will be exactly like them, not even every child with Down Syndrome will be like them.
There are so many variables, but both these ladies show no awareness of them - that some people are much more severely disabled, some peoples parents are far less able or totally unable to care for them, that some people desperately need support they will never get...
I'd love to interview either of them, properly and ask them how they think a child who has no parents at all and lives in the state care system feels? Or how their parents might feel if they were in their 60's or 70's with little money and no external support. Or how they might feel if they knew they were going to have a baby that would live a short, painful life and might kill them on the way out.
But that would be cruel and unethical.