Well stated. If we break down to that level, then I’m just out of luck. Yes, I could probably defend against a haggard guy, but what about two ex-cons...maybe. How about when they come back with 7 or 8. The point being, unless you can kill each attacker and each group of attackers as they arrive and then bury the bodies without anyone knowing anything has happened (i.e., dead rabbits tell no tales), then you will be eventually overwhelmed - and of course killing and burying everyone is not possible - unless you’re a drug lord (I saw a show on that). It just can’t have a happy ending.
>> “and of course killing and burying everyone is not possible” <<
.
That is what manholes are for.