"" ... the Welsh language is pointless and not used anywhere else ... "
Welsh is spoken in Patagonia."
Which reminds me: my wife works with a Welsh-speaking chap who has reported that when speaking Welsh, he can achieve mutual comprehension with Basque speakers.
And anyhow, how is any language pointless if it works as a means of communication? The more the merrier, I reckon. Just imagine how boring the world would be if we all spoke the same language - and which one would that be?