Finland has very few people. It's like comparing Luxemburg with India, do you think you can just reapply what works in small countries regardless of scale?
But your really can’t. GDP per capita doesn’t capture so many parameters and conditions (like being landlocked surrounded by wealthy countries that use you as a de-facto tax haven)
It’s not GDP/per capita, but total GDP. To say the USA earns more of its GDP from natural resource extraction than Finland does is completely meaningful if the claim being shot down is “Finland can only afford these programs (and the USA cannot) because of all the money they are making from natural resources.”
Oh, I'm glad to learn today that looking at a single variable can erase all the potential differences between countries and culture and bazillions of other factors.
The main reason it doesn't work in US is, you don't tax the rich and corporations like you should, and because your tax dollars are spent on inefficient massive military industrial, intelligence industrial, prison-industrial, and medical industrial complexes, that are effectively theft of government budget. End the limitless corruption and be amazed what you can afford. :)