#21. Does the average american citizen have a constitutional right to own a firearm?
A. No. There is no constitutional right to own a gun.
You seem to imply that the pool of people subject to compelled participation in the US militia confers the constitutional right to carry a gun by that individual. (If I'm wrong about that then discount most of what I've written below except for the final paragraph.)
That's an interesting and creative reading of the Second Amendment.
The 1939 case U.S. v. Miller is the only modern case in which the Supreme Court has addressed this issue. A unanimous Court ruled that the Second Amendment must be interpreted as intending to guarantee the states' rights to maintain and train a militia.
"In the absence of any evidence tending to show that possession or use of a shotgun having a barrel of less than 18 inches in length at this time has some reasonable relationship to the preservation or efficiency of a well-regulated militia, we cannot say that the Second Amendment guarantees the right to keep and bear such an instrument," the Court said.
So according to case law, it looks like the 2nd amendment addresses a state's right to own guns and not an individual's.
You mention that we are being lied to by the media. I don't follow gun news so would you show me some of this misinformation?