My personal experience is contrary to your assertion. Could we both be right? Sure.
Absolutely - you may see a shortage in who is available to your organization, while the Breitbart-cited scholars are addressing the national average.
Im going with what I see every day.
"Going with" in what sense - supporting nationwide policies that don't conform to nationwide realities but do conform to your corner of the world?
I don’t know the motivations or any biases in that “study”; a study can be used to say anything.
I’m not discounting it, just saying it’s no match for what I have seen in stem education for the last fifty years.
We’ve still got the best no doubt. But we also have fewer every year.