In what parts of the Constitution does the phrase "the people" not include all free citizens who are eligible to vote?
"The people" does not "include" all free citizens who are eligible to vote. "The people" ARE all free citizens who are eligible to vote. "The people" is limited to the enfranchised body politic.
It is NOT all persons. It is not even all citizens.
Strange, don't you think, that the Founding Fathers would protect the right to keep and bear arms for individual self defense and hunting and whatever, but only protect this right for a relatively small percentage of the population at the time? Why do you think they would do that? Why wouldn't they at least say, "... the right of all citizens to keep and bear arms ..."?