You should learn more about both Finnish history and current reality if you think Finland did not participate in oppression or subjugation of neighboring population. Starting with current and past discrimination and oppression of Sami [1] and active attempts to establish Greater Finland during WW2 [2]

I will grant you that Finland was not very successful in establishing empire besides mostly erasing Sami identity and language but that's not for the lack of trying.

[1] https://en.wikipedia.org/wiki/S%C3%A1mi [2] https://en.wikipedia.org/wiki/Greater_Finland