I always think of Red Dot as what I put in 9mm and 12 gauge reloads.
Illinois case law is pretty clear. I only have the right to defend myself inside my own home and when my life is in danger--that is if I'm in a "friendly" jurisdiction. Residents of Chicago have no such right.
I also have to keep in mind that my cop neighbor is watching my back yard as well. If he sees a flashlight or laser dot he might chose to investigate himself, and he will not be unarmed.