Different parties' candidates' answer to the claim "Finland needs more immigrants" in the MTV (biggest commercial TV station; not to be confused with Music Television) voting aid application, proportion of candidates to answer "yes":
Swedish People's Party 93%
Green League 88%
National Coalition Party 66%
Left Alliance 63%
Social Democrats 50%
Centre Party 43%
Christian Democrats 42%
Finns Party 3%
(source)
So we can see that the Finns Party is in its own league with regard to criticism of immigration among the parliamentary parties. Also of note: NCP is more open to immigration than SDP. The question didn't differentiate between types of immigration.
It's surprising that the NCP is more pro-immigration than the Left Alliance.