And in Sweden, another "nordic socialist country", there's no tax on property nor inheritance, as well as very low taxes on invested capital. There are about 1.5x more USD-billionaires per capita in Sweden than in the US. I think there's room for some more taxes.
"Democratic Socialists" in America aren't socialists. Even Bernie Sanders doesn't advocate seizing the means of production. You can argue we use it wrong, but we can argue it's our language and we evolved it.
But I don't think even all the nominally socialist parties in Europe are really socialist either.