Uh...actually is does push such an ideology:
Putin approves new foreign policy doctrine based on 'Russian World'
President Vladimir Putin on Monday approved a new foreign policy doctrine based around the concept of a "Russian World", a notion that conservative ideologues have used to justify intervention abroad in support of Russian-speakers.
The 31-page "humanitarian policy", published more than six months into the war in Ukraine, says Russia should "protect, safeguard and advance the traditions and ideals of the Russian World".
How is that any different from Hitler's "Ein Volk" doctrine?
“in support of Russian-speakers”
That’s the difference. If Hitler had ONLY supported German speakers, WW2 would have been MUCH DIFFERENT. Likewise the same with Stalin’s domination of Eastern Europe.
“Russia should “protect, safeguard and advance the traditions and ideals of the Russian World”.”
The U.S. should “protect, safeguard and advance the traditions and ideals of the American World”.