> I have claimed that the class of dark matter theories includes those which reject the existence of "dark matter"
And this claim is incorrect. "Dark matter" is a particular hypothesis for explaining the discrepancy in galaxy rotation curves (and other observations as well, such as features of the CMB that cannot be explained with a model that only includes the matter visible to us). It is not just another name for the discrepancy itself, or for any theory that claims to explain the discrepancy by any mechanism whatever.
> under the (possibly incorrect) assumption that the historical term "dark matter theory" refers to any theory that explains galactic rotation curves
And this is an incorrect assumption. That's what I've been saying all along. See above.
And this claim is incorrect. "Dark matter" is a particular hypothesis for explaining the discrepancy in galaxy rotation curves (and other observations as well, such as features of the CMB that cannot be explained with a model that only includes the matter visible to us). It is not just another name for the discrepancy itself, or for any theory that claims to explain the discrepancy by any mechanism whatever.
> under the (possibly incorrect) assumption that the historical term "dark matter theory" refers to any theory that explains galactic rotation curves
And this is an incorrect assumption. That's what I've been saying all along. See above.