> So IANAL, but didn't Griswold v. Connecticut establish that some rights DO exist without being enumerated anywhere?
Not really,
> Specifically, that the guarantees in the bill of rights have "penumbras" that imply other rights not explicitly stated in any text
No, the ideas of "penumbras" and "emanations" in Griswold are not nonenumerated rights; they are the full scope of the meaning of particular enumerated rights and products of the combination of those enumerated rights, not rights that exist independent of enumeration.
Not really,
> Specifically, that the guarantees in the bill of rights have "penumbras" that imply other rights not explicitly stated in any text
No, the ideas of "penumbras" and "emanations" in Griswold are not nonenumerated rights; they are the full scope of the meaning of particular enumerated rights and products of the combination of those enumerated rights, not rights that exist independent of enumeration.