The loss of grammar and the dogma that anything said is to be treated with respect due to life itself have had the further cultural effect of encouraging the natural carelesness of talk

Mr Barzun, he is speaking out of his strawman's ass, of course. Grammar, like language, is neither created nor destroyed. Grammar, like language, merely changes. This sends the angstful, both young and old, into a tizzy fit, but hey, all the tizzy fits in the world cannot unchange a changed grammar or language.

Ceci n'est pas un seing.