Wrong, wrong, wrong. The very purpose of ID is to identify which features are designed and which features are not designed.
"This state of affairs is an entirely intentional feature of Intelligent Design, which itself was designed not with a scientific mission but with a political/activist function: i.e. to serve as a kind of umbrella organization/ideology for antievolutionists."
Exactly why evolution is defined merely as 'change'. This intentionally vacuous definition of evolution gives politically-active naturalists the perfect 'bait-and-switch' tactic to get their agenda implemented under the umbrella of deceptive 'science'.
"The main activity of "Intelligent Design advocates" is to conduct and [sic] endless song and dance act aimed a making the casual observer think that it has something substantive to contribute."
The main activity of 'naturalist' advocates is to conduct an endless song and dance act aimed at making the casual observer think it has something substantive to contribute.
Wrong how? That's exactly what I said in the message you quote. All they do is infer design (say that this or that structure is the result of "intelligent design"):
Basically on absolutely every substantive, empirical claim ID is silent, vacuous and embraces self imposed and intentional ignorance and incuriousity, excepting exclusively the "inference" that certain features are the result of "intelligent design".
My point was that IDers refuse to say anything else about "intelligent design" structures, such as how, when, where, etc, the design is actually instantiated, and therefore we don't know anything useful about what it actually means to say something is the result of "intelligent design". We might as well say something is the result of "yarp" or "yada, yada". All I'm gonna tell you is that "yada, yada" is not "evolutionary naturalism," but as to what it actually is I ain't gonna say nothin'.
Your attempt, via bald assertion, to claim intellectually equivalency on this ground for evolutionary theory is amusing. Anyone who's actually read even a small sample of the relevant scientific literature knows that there is nothing remotely like the IDers' systemic incuriousity as to mode and mechanism on the evolution side. Indeed most dramatically the opposite. The literature is filled with discussions of specific mechanisms.