It's more commonly called trisomy 18. It's a profound disability for certain, but a better diagnosis to get than the full-blown "that's not a disability, that's just being dead" seen in Jaxon/the Hartleys/etc. There's an organization called
SOFT dedicated to T18 and similar disorders (e.g. Trisomy 13), and they have a
very in-depth booklet on taking care of children with these disorders.
I wouldn't actually be surprised if the mother's reported abortion experiences are, at the very least, not
that exaggerated. T18 and T13 exist in a complicated state where until very recently they had basement-level survival rates, and were generally coded as 'incompatible with life' and equal to something like anencephaly, but we've now found plenty of T18/T13 babies survive infancy and have outcomes more in line with 'severely disabled, but can live a happy life'. Practice hasn't necessarily caught up with this, so a lot of genetic counsellors will work from older information and counsel families that these conditions are even more severe than they usually are.
Still not a mild condition at all, though.