Certainly language is used as a political weapon, disenfranchising people from the vote, from benefits and from education while also being used to offer opportunities for agressive nations to claim "rights" over language groups outside their own borders.
I'm not naming names, but we all know who they are.
Quote from this article (a very interesting read, I highly suggest it):
"According to the MIT Indigenous Language Initiative, approximately 6,000 languages are spoken around the world. Of those, they say, only about 600 are “confidently expected to survive this century."
I believe the whole article is relevant to this discussion.