Good question. A concern would be that she would not do anything at all for fear of endangering a bystander.
Consider a situation where you are in your house during a blackout. You are "blind". And an intruder is banging on your bedroom door. Finally the door swings open. Do you shoot, or do you hesitate because it might be one of your kids trying to flee to safety? It's not such an easy call.
“Consider a situation where you are in your house during a blackout. You are “blind”.”
Exactly so. Yet, you do not advocate taking a person’s Constitutional right to bear arms away from them because of that disability. You rely on them to use their judgement.
Being blind does not prevent someone from having the ability to use judgement.
I'd shoot. My kids are all grown and gone, and there's no good reason anyone should be in my house trying to get into my bedroom.