Reading their stated objectives and concerns ...
Where are you reading their stated objectives and concerns? The statement they signed has no such information.
... I would assume ...
We are not interested in your assumptions.
... they (those 400 Phd types ...
They are not all PhDs.
... from every leading university in America ...
Nope. E.g., I immediately see that Harvard, RPI, and Brown are not reperesented.
...and encompassing about 35 fields of teaching and research) ...
And far more non-research and non-teaching fields
would continue to perform valuable scientific service as they have in the past but with due attention to the fantasmogorically suspect tenets of evolution mutation and natural selection as the agents of evolutionary change.
Interesting. You have no idea whether or not they have performed any valuable scientific service, you have no idea whther their work has anyting to do with evolutionary biology (hint: most of them don't), yet you calim to know what they will do in the future.
... And I suspect ...
We don't care what you suspect.
Won't it prove somewhat difficult to classify all those people like members of the National Academy of Sciences, to department heads at little schools like Rice, MIT on and on as misinformed non-scientist dunderheads?
You are lying. There are no department heads at Rice (one of the signatories is director of the Rice Space Institute, which is noot a department) and there are not even any
faculty members from MIT on the list, much less department heads. (BTW, Walter Brown is living proof that an MIT degree is no proof agains looniness and significant sciwentific error).