I think Duckster nailed it.
“That whenever any Form of Government becomes destructive of these ends [life, liberty and the pursuit of happiness], it is the Right of the People to alter or to abolish it, and to institute new Government.”
Democracy makes it far easier to alter government to prevent it from being destructive, than reach the stage where abolishing it altogether. Every major democracy has seen some form of armed struggle by those who perceived the government as a threat, but most of those struggles resulted in altering those governments.
Armed struggle does not mean a huge army of rebels or revolutionaries trying to overthrow the regime. But like the Labor and Civil Rights movements, it means a willingness to engage in violence against a state that uses violence, but victory is more often won at the ballot box or in a judge’s chambers than on any battlefield.
Any case where the government uses violence - be it physical or political, such as jailing dissidents or suppressing speech and peaceful assemblies, then those oppressed have the right to engage in equal tactics. (It is being shown that non-violent methods are more effective in modern societies though.)
Government cannot hide behind the shield of laws and legitimacy when it swings its sword for illegitimate and destructive goals. Plus the first stage is often using thugs to do its dirty work, supported either passively or actively, and so the first conflicts are rarely against the state.
And modern democracy is not solely ‘majority rules’, but also explicit protections of individuals and minorities against abuse by the majority. If the former are threatened by the latter, they certainly have the right to struggle against those threats in equal proportion.
[QUOTE=New Deal Democrat]
Any armed struggle by the left against the U.S. government will lead to a right wing backlash that will make everything in the United States much worse by left wing standards.
[/QUOTE]
History does not support this conclusion. One important by-product of Kent State and similar events is that lethal force is heavily frowned upon and outright discouraged when law enforcement officers confront demonstrators, no matter how many rocks or bottles they throw. Kent State was one of the main reasons for developing or deploying less than lethal weapons such as tear gas and tasers.
As noted above, the Labor and Civil Rights movements did see most of their agenda adopted, partly because they were willing to use violence, even if in most instances they did not.