I certainly don't understand the mentality behind it. And you definitely didn't make it any more clear. Like, you KNOW your kid will suffer, might live in constant pain, might die young and live a life that no one should be forced to live, but you're going to make them anyway? I don't get it, no. Smaller things I understand. More serious genetic diseases with no known cure or treatment, definitely not.
I also have allergies, which suck too.
But, despite my medical hardships, I love my life. I'm glad I get to live it. My life is wonderful.