It was also written at a point in time when the absolute peak of firearms technology was a musket.

The logic behind the 2nd amendment doesn't hold once Uncle Sam has nuclear tipped icbms and I'm not allowed to have them. I'm also not allowed to have tanks or rocket launchers or even high rate of fire Gatling style guns.

To paraphrase, "if you think the 2nd amendment is what's keeping the government off your back, you don't understand how tanks work"