Where are you getting that well regulated means well armed? It meant, and still means, trained, able to take orders, and battlefield ready. Where do you think the term “regulars” comes from in the context of historical warfare and what do you think that term means?
Did you throughly misunderstand collective rights theory or something? Could you possibly point me to the interpretation where it claims “well regulated” means “well armed” in the context of the 2nd amendment? I certainly couldn’t find any sources to back that claim and it seems like you might have pulled it out of your backside.