https://en.wikipedia.org/wiki/Aesopian_language

Parents often use variations of double entendre to communicate between each other with out children understanding while present.

It's also likely that Indigenous elders may use this sort of communication with uninitiated members nearby.

Where does the line exist for moving from coded language into the space of dog whistles and a "wink and a nod"?

Do these exist in all cultures?

What level is contextual?

As he rightly says they "might be", but where are his small scale experiments providing any support for these claims??

School-choice is lovely in major cities that might provide it, though often it's a socio-economic ghetto creator moving privileged white children from their dark skinned neighbors. Why not force better public education and funding by rolling back the strangle hold on economic spending going back to Regan? School-choice is nice, but it continually feels more like a dog whistle for institutional and structural racism.

And don't forget that for the smaller communities that only have one school option things are even much more dire.

Allosso is using "both sides" in a broadly journalistic fashion the way it had traditionally meant in the mid to late 21st century until Donald J. Trump's overtly racist comment on Aug. 15, 2017 "you also had people that were very fine people, on both sides." following the Charlottesville, VA protests.

Perhaps it might be useful if people quit using the "both sides" as if there were only two perspectives on an issue (for or against), when in reality there is often a spectrum of thoughts and feelings, not all mutually exclusive, about issues?