"Why do you need an AR15?"

[stanc]

Unlike you and others, I'm making no inferences.
I am just going by what is written, and the only reason it explicitly gives for having a militia is state security.
There is no mention whatsoever of self defense, and no mention of being able to overthrow the government.

The words, as written, DO NOT explicitly state that. Sorry. Read. And read again. There is not any sort of transition, besides a comma, that directly links the phrases. You may INFER given the context that the reason to keep and bear arms is in order to be a member of a well regulate militia that secures a free state. But again, there are no words that create this direct link. You may believe your superior intellect grants you the power to INFER correctly, and you may indeed by right, or partially. But given only the words, and their accepted meanings, you cannot derive the conclusion you suggest from merely the written words.

Nonsense. If that were true, it wouldn't be possible to conclude anything from most of what you just wrote, since most of your sentences are composed of "phrases linked only by commas."

In actuality, the "phrases" in the Second Amendment (as well as in your sentences) are directly linked by virtue of being parts of the same sentence. Each "phrase" is meaningless by itself.

"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."

What shall not be infringed? The right to keep and bear arms.

Why should the people have a right to keep and bear arms? Because in the 18th century, members of well regulated militias were often required to furnish their own individual weapons, so they needed to have guaranteed access to said weapons.

What is the purpose of a well regulated militia? State security. Explicitly stated (in red, above). No mention of being able to overthrow the government. No mention of self defense. Only state security.