The problem is, that unless you have a longbow, any other object you would use, it would mean hand-to-hand close quarter combat with an attacker that would probably have knife/heavy hammer/axe (or whatever he used to get through the door). You claim that you are a war veteran with extensive close quarter training, so you may still have some chance. Anyone else will have next to no chance, unless they have a pistol or 12 gauge in hand to defend themselves.
And even with your training, having threat neutralized before he gets to you is always preferable option. So yes, anyone with a gun and just a bit of knowledge on how to use will be safer than you.
Yeah, we’ve seen how gun control works. Have you heard about the attacks in France? How the attackers simply went online and found a black market seller, then drove to the MAIN TRAIN STATION in the Brussels and bought not only AK 74s, but also a goddamned RPG?