[lr4444lr]

There are two separate claims:

1) Ensuring that factors not relevant to job performance like age and gender are not excluded for in hiring or antagonized in workplace hostility under the vague protection of "cultural fit", because skills, knowledge, talent relevant to business success can be found across demographic subgroups. That's supported in studies.

2) Packing a company with people of those non-relevant characteristics with the assumption that diversity itself is the causal instead of the correlative factor. That claim I believe is not supported, and I challenge you to cite evidence for it, or else to qualify the statement "statistically significant increases in productivity from more diverse teams".

[richmarr]

I've addressed this in a bit more detail in other comments, if you need more you're welcome to look into it.

[lr4444lr]

I don't see citations in your other comments, nor sentiments that clarify controlling for factors identified as occupationally non-relevant. If you're advancing the idea (which I deduce from your other comments) that people who are diverse insofar as they have separately relevant attributes which the individuals themselves perceive as incompatible and deleterious, then I have no argument about it, and can admit I don't know anything about the research specifics in that sub-problem of management. But you should explicitly spell out that this is your claim. Furthermore, that's an internal problem, not the problem of rejecting people at the hiring phase for being a bad "cultural fit". For example, if you don't write tests, "move fast and break things", and feel strongly about that, but we have mission critical code and clients who will drop us for competitors if our software is buggy, you're flat out not going to work here. The "diversity" you bring will be objectively bad for the company, barring some proven god-like irreplaceable ability to deliver value on another front.

[rhizome]

If you're advancing the idea (which I deduce from your other comments) that people who are diverse insofar as they have separately relevant attributes which the individuals themselves perceive as incompatible and deleterious, then I have no argument about it...

This looks like an incomplete sentence to me; what is the "it?" "People who are diverse insofar as [condition] which they themselves [see negatively]" defines a certain (sub)set of people, but the idea, assertion, or conclusion that you're agreeing with appears to be missing.

[richmarr]

I have to confess I don't follow a lot of your comment, but I wouldn't describe whether writing tests (or not) as diversity.