There's no "vocal minority" doing it, Nigel. There's ordinary people using the words in new ways
I somehow doubt that the change in the use of the word 'Gay' was brought about due to the requirements of the majority. I believe it was brought in by a vocal minority.

I went out into my veg plot with determination and decimated the weeds I think anyone stating that in the allotments would quickly become a laughing stock. Not really sons of the soil type language is it?