i disagree
ignorance could be a simple state of not knowing. for example, i could say i am ignorant of Baleen whale anatomy, because i know very little about it. i could say the same about the currency in United Arab Emirates and the history of the inidigenous peoples of Fiji. if you count up all the things you knew little to nothing about, you could say that almost everyone is generally an "ignorant" person.
actively choosing to ignore something is another matter, but i think that's more tied to other things, like stubbornness, racism, nationalism, just plain stupidity, and above all, laziness. "why should i care about ____ when i'm comfortable living my utterly pointless, petty, gossipy existence in Nowheresville, USA?"
my personal selection for worst disability would be loss of sense of smell and taste. I COULDN'T LIVE WITHOUT SAVORING AN IN 'N' OUT DOUBLE DOUBLE OR A GOURMET RISSOTTO. GIVE ME TASTE BUDS OR GIVE ME DEATH!
