capitalism and the state do not have some innate desire to wipe out cultures and languages, infact the modern state is desperately trying to create some form of social cohesion by supporting multiculturism
No, states repackage 'cultures' and identities within the context of their own existence. 'Multiculturalism' is a case in point. What we're defending is a people's history and consciousness (to give it a name) that doesn't and couldn't fit within the confines of a subservient, Anglicised, Globalised environment. We're not talking about languages or folk heritage etc. in isolation to how people relate to their own part of the world and objective circumstances. Though I'll be predicatably denounced for having such heretical opinions; this is a class position. Struggle with a cultural perspective isn't new, we ourselves have a long and often forgotten history of social sturggle rooted within the common people. Against this, you'd only be furthering the exact same alienated homogenisation that capitalism itself necessitates, like a typical prole you'd be part of capital.
Your views, as always, are like someone looking on from without...following the example you yourself used - of someone watching the TV.
But it's not evil in itself so why do we have to prove it's good? It's like proclaiming your solidarity with the oppressed masses in Vietnam, you couldn't do that as effectively in English as you could in Vietnamese, cause they don't understand English.
Gaelic is no better and no worse than any other culture, and it has a lot of poetry that is worth knowing in the original just for the sake of it. Sorley Maclean, the best 20th c Gaelic poet, was a Marxist, but he wrote an excellent poem about the Spanish civil war.
If no culture is good in itself, we may as well drop the bombs now. Real proletarians and peasants speak languages other than English, so why say their culture is crap just because they're different? All cultures have value, so learning about any one enriches yourself, I just chose the nearest one to me. And by doing so, you're saying that not all Gaels have been drunken wife-beaters or Tyrannical chiefs, you're saying that there is some good in every culture, even ones that have been marginalised by the forces of history. You can find the best of that culture and add it to your personality, your personal history. Down with the commisars! Saorsa cainte! (freedom of speech)