It's probably worth noting that they are both full professors at Stanford, not just a guy with a doctorate vs a Stanford professor.

I'm unaware of Professor Conrad having an "axe to grind". AFAIU, he simply thinks that what Professor Boaler advocates is incorrect, and he sees fit to describe the myriad mistakes and misrepresentations in her research and advocacy.

He shares this outlook with many people, including those who believe that despite saying that she advocates for "equity", her agenda would actually lead to worse outcomes for many students, including low-income students who lack family resources to procure advanced mathematical education.

That certainly sounds like what someone who agrees with Dr. Conrad, and has the same axe to grind, would say.

When I look up "axe to grind" I see this definition:

have a private reason for doing or being involved in something.

I have never met Professor Boaler, nor do I have any private/hidden agendas. Do you simply mean "someone who disagrees with" when you say "axe to grind"? If so, it's somewhat of a meaningless epithet. If you mean the normal definition, I'd be curious what evidence you have for that (related to Professor Conrad, or me).

Well, let's just agree to disagree, then.

If you won’t say what you mean, there’s no other choice!

Oh yes, there is another choice. Rather than assume that what I mean is the dictionary definition and asserting your opinions, why not ask some good questions?