Comment by dragonwriter

> There's no myth that we won it alone.

Yes, there is.

> Elementary school texts on the subject lay it out fairly clearly that we did it with the French.

Textbooks are a mixed bag, but most I've seen at K-12 levels do mention that the French eventually were involved in some way, but very few give a real idea of the nature, extent (material or temporal), and criticality of French aid. E.g., approximately zero note that France started covertly arming and funding independence-minded Americans before the Declaration of Independence.

But even if the textbooks told the whole story, that wouldn't disprove the existence of a popular myth, it would just make it's persistence more remarkable.