I assume you're alluding to military spending. We've got to get to a point as a nation where we stop acting like having a strong military means we need to just spend, spend, spend clear above and beyond everyone else. I'm good with having a strong military as a deterrent. But when we're pumping trillions into the middle east while our public education systems fall apart and we've got utilities in desperate need of modernization, you start to wonder whose benefit everything is for.
I don't know that Scandanavian-style socialism can work in the U.S. for exactly the reasons you point out. They have a nation the size of one of our states, they're lower population, highly-educated. Could we get greater success to take root in the U.S. through improved access to education, job training, etc? Maybe, over generations.
More likely with the political climate here is that the pendulum swings the other way in 8-12 years and the conservatives leave the popular stuff and gut a bunch of other stuff so that it's not technically gone, but it's so gutshot that it will fail and then people will say, "See? It doesn't work!"
As for tax rates, I'm with Mr. Buffet when he says it's a bunch of BS that you can tax people who want to get rich into not wanting to get rich any more. As I always say to my conservative friends, "What are you waiting for? If it's so great and cushy to be 'on the dole' and not work for anything, if that's such an easy life, then get started! You go get fired and start collecting unemployment, SNAP, move into Section 8, do all of that. You life on that government cheese and I want to hear back from you about how great it is."
They never do.