I disagree. When I moved from Finland to the US, I was surprised to find how popular actual "abolish private property" style socialism was among young Americans. I hanged out with leftist people when I was a student, and I kind of knew many of the people who eventually ended up running the Left Alliance (the main left-wing party). My impression was that they had all accepted free markets as a necessary evil, rather than advocating for the socialism of their predecessors. But it looks like Finnish students have started adopting American socialist ideas in the recent years.

Bernie is probably the most well-known democratic socialist in the US, but he is not a member of DSA. By his political positions he would be either in the left wing of Finnish Social Democratic Party or in the mainstream of the Left Alliance. He would probably choose the Left Alliance, since it is more like a coalition of like-minded activists, while the party is the primary actor for the Social Democrats.

AOC, another well-known democratic socialist, would also fit in the Left Alliance. She is part of the moderate wing of DSA. But if you start looking into the ideological wing, you find plenty of actual socialists who would make Finnish mainstream leftists uncomfortable.