All wanted an armed citizenry, even Hamilton, the foremost proponent of a Select Militia. But some, like Gerry, most definitely did not want a select militia at all. It was to pacify them, the anti-federalists, that the guarantees of the Bill of Rights was formulated and passed. They also wanted a "well regulated" militia, one well suited to its tasks.
I agree they didn't object to an armed citizenry. Far from it. But that's not what they intended for the defense of the state. For that they wanted a select Militia. And they wanted their arms protected from federal infringement.
There is absolutely no reason for the second amendment to be written the way it was if it simply protected the right of citizens/individuals/persons to keep and bear arms. None.
State constitutions protect that right.