Apart from the ones living in Russia, I don't really agree that Sámi live under a repressive government. Norway, Finland and Sweden all have Sámi parliaments to take care of their special interests, as well as (of course) legal protection for their cultural and linguistic rights in the "regular" government.
Finland also has a minority of Swedish-speaking Finns. Just compare how the Finnish-Swedish population and the Sámi population were treated throughout history, and you'll see the difference. Swedish is an official language in Finland, none of the Sámi languages are. And you couldn't get an education with Sámi as your primary language until 1994.
These are very recent developments when compared to repression lasting centuries. Just like racism towards African-Americans didn't stop with the Civil Rights Movement, repression of the Sámi people didn't end with the Sámi parliament.
I remember some years ago, there was a huge debate in the forums of Vårt Land, Norway's largest Christian newspaper, between one advocate for these exclusive rights, and one furious opponent. The funny thing was that the proponent was a super-samophile southerner who had learned the language and moved north, while the opponent was a (genetically, at least) full Sámi who just happened to be an old school Marxist who hated rights based on nationality.