Serious question: what are the arguments in favor of language preservation?
"As languages disappear, cultures die. The world becomes inherently a less interesting place, but we also sacrifice raw knowledge and the intellectual achievements of millennia."
Ken Hale, Massachusetts Institute of Technology, quoted in Davis, W. 1999.
Language and your cultural identity are very tightly coupled. Without language you essentially lose your identity, which is why its crucial to preserve your language. It's one of your primary identifiers of you and your culture. Wenying Jiang stated it quite well in her paper, "The Relationship Between Culture and Language" when she says your culture is like an iceberg. Your language is the tip which sits above the water. The rest which sits under the water is the rest of your culture. Your customs, your religions, your societal norms.
Link to her paper which is worth a read: http://203.72.145.166/ELT/files/54-4-3.pdf
Also consider the following:
"With the loss of the languages, all kinds of wonderful things that the speakers did with their languages have also vanished, for example, some of the greatest works of oral literature ever produced–the multilingual performances with different characters speaking different languages that was found in the Pacific Northwest.
The highly elaborate dances that accompanied the oral tradition are frequently also gone.
Large amounts of local knowledge about fauna and flora, ecosystem management, local place names, spiritual values, and so on are all submerged, altered or gone because the original languages that expressed these concepts are gone or no longer well understood."
source: http://newswatch.nationalgeographic.com/2009/11/15/0005_nati...