Much of what he's saying isn't 'pure fantasy' for an astonishingly large percentage of the modern world. Maybe we should do less dismissing and more wondering why the fuck we can afford war but not education or health care.
Are you really wondering this when 47-49% of the country is ready to vote for whatever lunatic the republicans will nominate.
We live in an extremely divided country when it comes to social and economic philosophies, this is why change never comes fast and any step to the left should be celebrated.
People protesting republican obstruction to Sanders plans outside of capitol would only actually help those republicans stay in power and even gain more seats. Can you imagine how those images would rile up the right and even far right?
The Sanders revolution would actually need to come to arms and start a second civil war in order for him to accomplish all he promises within 8 years.