I don't see the United States becoming a full-on social democracy like Scandinavia but a transition to a social market economy with many social democratic elements like in Germany is quite possible as Millennials rise to political prominence.
I also see this possibly happening. The Millenial generation may be libertarian on social/civil rights issues (gay marriage, weed, wiretapping) but economically they are much more liberal. I could see our health care system becoming similar to Switzerland (basically a more liberal Obamacare), and higher education being paid for by the government in the the next 30 years.
Our second amendment prevents this from happening.
How? Are you envisaging armed gangs of thugs preventing elected representatives from enacting those policies?
