Michigan law says:
Wisconsin law says:
Colorado law says:
Just a few exaples, I'm sure most states have similar laws. I got these from nraila.com. No mention of exceptions for home defense. It appears that yes, you do lose your right to self-defense with a gun if you are under the influence of alcohol. Alcohol doesn't void all self defense rights, for the simple fact that guns are not the only way to defend yourself. Depending on your state laws, even if you were completely justified in killing in self-defense, you still are guilty of "possessing" or "operating" or going armed, and are therefore breaking the law. Regardless of how we feel about it, there it is.
It is unlawful to possess or use any firearm while under the influence of liquor or any exhilarating or stupefying drug.
Wisconsin law says:
It is unlawful to operate or go armed with a firearm while under the influence of an intoxicant. It is unlawful to go armed with a handgun on any premises for which alcoholic beverages are sold and consumed.
Colorado law says:
It is unlawful to possess a firearm while under the influence of alcohol or controlled substances.
Just a few exaples, I'm sure most states have similar laws. I got these from nraila.com. No mention of exceptions for home defense. It appears that yes, you do lose your right to self-defense with a gun if you are under the influence of alcohol. Alcohol doesn't void all self defense rights, for the simple fact that guns are not the only way to defend yourself. Depending on your state laws, even if you were completely justified in killing in self-defense, you still are guilty of "possessing" or "operating" or going armed, and are therefore breaking the law. Regardless of how we feel about it, there it is.