The "want to be" gun confiscators would have a daunting job ahead of them

[stanc]

So, what else is new?

War is costly, civilians take the brunt of suffering, and are always at a disadvantage to well-trained forces with tehnological advantages. Nonetheless, the examples given show that determined armed resistance can prevail, even though at enormous costs.

How does this negate the value of the right to keep and bear arms?

Well, if the value of being able to own rifles like the AR15 is to enable the people to obtain a Pyrrhic victory over military forces, then I guess it isn't negated.