Nonsense; a design for a fully-automatic firearm was presented to Congress for a funding request at the second Congress, and working designs for machine guns go back at least as far as 1718 (James Puckle's design). Concepts for machine guns go back even further. The founders were well aware of the inevitable progress of technology, especially in the field of firearms in which many of the founders were personally interested.
If you're going to try to equate sodomy with a fundamental (and constitutionally enumerated) right, I suggest you get your basic facts straight. It also seems somewhat queer that you would select firearm rights in your comparison, considering (even though they are an enumerated right upon which the Constitution is clear that should "not be infringed") that the modern court have often abridged such rights in spite of explicit Constitutional constraints, restraints which do not exist in the case of rules relating to sodomy.
Citation? (I'm not asking because I doubt you, but because I want to use the information in future 2nd Amendment debates with the libbies in my office.)