No, the 2A wasn’t meant for individual people to keep arms for that reason. It was written before the US had any sort of army (and several of the founders were actually against a national standing army), with the point being each state would keep enough arms and accoutrements and train the people to be ready to be called up to defend their state.

It was meant to create something like what became the National Guard.

The Supreme Court changed that definition in 2002 with the Heller decision, so now it’s even further removed from its original meaning. I suppose that makes it deficient if you’re reading in an original meaning it never had in the first place.