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Sweden's traditionally made up of Götaland ("Goth's land"), Svealand ("Swede's land"), and Norrland ("North land"), with Roslagen being a region in Svealand. Rurik was "Swedish" in the sense that he was from Svealand which later went on to give its name to Sweden, but at the time "Swedish" would not have been understood as it is today but rather as a tribe. IIRC Tacitus mentions the Suiones in one of his works, so he name is attested well before Rurik's time.
Sweden would probably benefit from Finland joining in any case. >

Russian irredentists consider Finland to be rightful Russian clay along with Chechnya, the Baltics, and all of Ukraine. The Russian Empire annexed Finland before it annexed Chechnya. Putin and other Russian irredentists still hate Lenin for loosening Russian control over Ukraine and letting completely go of Finland.
The threat against Finland is real. >

Ukraine and Russia used to be a Swedish colony, so the threat against Russia from the Swedish empire is also real, according to Russian logic. >

Norse, Viking even, but it's a bit of a stretch to call it Swedish, no? Although I know little about the etymology of Swede and when it first arose, so I could be very wrong.