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It says the people have a right to a militia that can bear arms.

It says...once again...

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

The people. All of them. Are granted the right to keep and bear arms by the constitution of the United States.

Because the nation might one day need for them to be armed. Like in Ukraine.

It says what it means and it means what it says. The founders don't need you putting words in their mouths.

Good coffee, good weed, and time on my hands...