Rare languages are dying around the world. Many dying languages are located in dying language hot spots located in the Pacific Northwest of the United States and Canada, Oklahoma and the American Southwest, central South America, Eastern Siberia, and Northern Territory of Australia. These areas' "indigenous" populations have long been ignored and the need/desire for assimilation was neigh-on-nonexistent. However, greater integration is pushing speakers of these endangered languages to adopt the greater popular culture and abandon the old ways.
Many social scientists see this as a great danger. With the loss of language also comes the loss of customs and traditions. A culture is never the same when the language is defunct. Just compare 1800s Plains Sioux culture to the revivalist-revisionist culture today.
TDAXP has a unique take on this story. Instead of seeing it as bad he sees a positive side. He sees it as integration creating new opportunities and cultural enrichment for all. He does have a point. Traditionally, immigrants to the United States abandoned their old tongues, adopted English, and enriched the melting pot. Do any readers care to offer their thoughts.
There are still many rare languages around the world. Africa, India, and Southwest Asia will probably be the last "hold outs" of rare languages due to physical remoteness of groups and political-economical disenfranchisement of groups which limit the need/desire of integration.