It’s possible that the founders felt the way you say they did. But our arbiter of that is the court system with the USSC up at the top. Right now, that’s not what they say. They especially would disagree with this
“We have a free state.
Therefor a well regulated militia is not required as we have a federal military and a national and coast guards.”
Because getting a free state and also keeping it was a large part of their worldview.