Democracy is also the only way to effectively stop armed revolutions. From Ron Paul to Che, the entire spectrum says "no" to armed resistance until all democratic means are exhausted.
Che? He was a genocidal psychopath that hated gays and people that were religious. He personally oversaw the execution - murder - of thousands of innocent people that he regarded as undesirable or conflicting with his beliefs. Bloodthirsty, is the description he gave himself. He didn't start with democratic means, he started with sheer extreme violence. Che is one of the greatest villains of the last century.
Sure, stacking the deck, but it can be made to work.