They no longer need homeland because they no longer exist as a nation.And the fact that those poor Yotvingians no longer have their homeland
Yotvingians were annihilated in 13th century by crusades of the Teutonic Order, which wasn't exactly Polish.because later was incorporated into one form of Poland or another
They actually lived more to the north than the map posted by SashaWa indicates:
http://en.wikipedia.org/wiki/File:Balti ... c_1200.svg
Last speakers of Yotvingian (Sudovian) language disappeared around 17th / 18th century:
Yes but the major difference is that Poles exist, while those nations / tribes do not exist any more.*The current Poland is situated on a previously existing territory that was "liquidated".
And the main reason why Poland regained independence in 1918 while Yotvingans or whoever else didn't, is that Polish nation existed, while Yotvingian didn't. Germanization / Russification wasn't successful enough in this case.
The main reason why Israel was created after WW2, is that nations have the right for having homelands.
If Yotvingian-speakers survived until 1918 (instead of dissapearing completely by 18th century) - who knows...
*Most of them exist as part of the Polish nation, since it was born from several tribes, not just Polanie. But their national identity is now Polish, they don't identify themselves with tribes which ceased to exist 1000 years ago.