I was just stating that my preference is for a handgun in tighter quarters than manuvering my 32" Carbine. The physics play out as described, but there is also higher risk ov overpenetrating and the cardboard box houses in Hawaii means that then neighbors house will get perforated as much as the target. It is mt choice and adaptation, I impose it upon nobody else.
As for blowing an arm off........I don't aim for extremities. I am proficient and confident in my abilities with my 9mm's and since it is what I am most proficient with, it is my preferred choice at this time. Though I have experience with AR's from my time in the Army, my AR is still relatively new to me. I do not lack any confidence in my abilities with it, I just know that I am not as proficient with it as I would like to be.
I believe shot placement trumps caliber in the Great Caliber Debate, and a rifle does trump a handgun (generally) as a shotgun trumps a rifle (generally), What anyone has planned for their HD needs and has practiced and rehersed will work best for them until that plan is revised.