Most Mongoloid influence, lol what a term.
The ancestral population of the Finns was European, but they have acquired considerably more exotic ancestry than the rest of the Northern-Europeans. One thing being the Saami constantly being pushed north and assimilated and the 2nd thing is the Komi(strongly Siberian influenced) influence in eastern-Finland(not certain about, but recently read about), the Komis have many Veps loanwords in their language and vice-versa and traveling by the river ways wasn't hard.
The point being, the ancestral population of the Finns was European. Many factors rise their "exotic ancestry", like bottle-necks, Finno-ugric/Europid ancestry in Siberia, the Saamis and so on.
You have a point about the southern-Finnic populations lacking in this "exotic ancestry", when compared to the Finns. But we didn't have the Saami, nor contacts with people like the Komi.
By the way, you can find "North-Asian" segments even among the Lithuanians. This is caused by a common ancestry with the Siberians, I already told you about the Europid/Finno-Ugric expansion into Asia. Knowing who you are, you should be happy about the Europids dominating non-Europid ethnicities. But instead, you're critical about the genetic mark that the Finno-Ugrians left into Siberia. :p
The chauvinistic ignorance towards the Finns has had a bad result since the 19th century and it was started by the Swedes.

