I read this quote in the other thread where there was a discussion on the origins of English language and the loss of some characters in the alphabet. In that context, this quote made sense.
Apart from the first line, this quote doesn't apply here and frankly makes no sense. Yes, English may borrow (or steal forcefully, apparently) words from other languages, but that does not mean the language internally must not have its purity defended. Devaluating terms to have little meaning (awesome, terrible, fantastic) is not my idea of progress.
(Foreign languages on the other hand are a good source of new words which can be introduced, already inflated, into English.)