GRAMMAR IS TAUGHT AS JUSTIFICATION, NOT CRITICISM
But the problem of our era is the elimination of pseudoscience and deceit put forth by Marxists, Socialists, Feminists, and Postmodernists.
So there is no reason we cannot teach grammar as not just ‘the good manners of victorian expression’, but as ‘the art of preventing the pollution of the commons by those who would produce deceptions in vast numbers with ease.