Nevertheless, it wouldn't matter if they weren't, a person's demeanor shouldn't determine whether or not they are allowed to live. A "normal" teenager is likely to be unbearable at times, but that doesn't mean they don't deserve to live.
“Why are abortion advocates like Chelsea Hoffman so against that? Do they truly love abortion — or hate Down syndrome ....”
Abortion was made legal just to do away with Down Syndrome, and other birth defects like it. Hence what Margaret Sanger called “feeble minded who are the human weeds”. People like this don’t want others to love Downs babies just to eradicate them.