They’re to a large degree the party of young people because most others have decided to solely cater to boomers. Many people probably vote green not only for their environment stuff, but also social and economic issues.
Intredastign now that you say it, it's almost the exact same here. Big problem is that majority of voters are boomers that are ready to destroy the country just so they get their stolen pension money
At some point in the history of Suo̯mi crimers were strapped onto a tree and left to be eaten alive by mosquitoes in a swampy area. Source: finnish shitpost from July 2020.