http://www.wsj.com/articles/price-tag-of-bernie-sanders-proposals-18-trillion-1442271511^^Here's one reason. We can't afford more big government when we're already mountains in debt.
Now some may argue: Just tax the 1%. They can pay for it!!
While that's true, I don't think the constitution or the framers intended our country to be subverted by redistributive wealth policies. And this is coming from someone in the lower middle class. Socialism isn't for America and it never was.
My vote is the person who will A) protect our civil liberties and decrease Big Brother's spying powers B) Will fix the debt crisis even if it means austerity and C) will keep us out of unnecessary wars in Syria, Ukraine, and the South China Sea.
Rand Paul has a good rating on all 3 of those.