Does it make any sense for people to keep voting for what they protest against?

In these Corporate States of America, elections function as a barometer for the corporate-state to frequently measure the actual level of societal dissidence. No other polls matter.

Street demonstrations and civil disobedience haven't had any effect — haven't produced desired change — because near all the demonstrators have later corporate obediently supported the corporate money manufactured Republican and Democrat candidates. Elections have only been serving to provide proofs positive that a supermajority of participants (voters voting) either affirmatively support, or they meekly acquiesce to having "our government" continue to do unto others and to themselves whatever the sociopathic corporate persons decide.

 de·vo·lu·tion

noun: retrograde evolution: degeneration: a lowering of effective power, vitality, or essential quality to an enfeebled and worsened kind or state

With every election, the corporate party's great wall imprisoning the minds of Americans has gotten longer, taller, and stronger. The Republicans have provided the rigidly inflexible bricks, and the Democrats have provided the flexible mortar that has hardened itself tightly around those bricks, binding conservatives and liberals all together in solidarity as one immobile mass confined together within a virtual gulag.

The ill logic of liberals is one thing in the everything that didn't change for good, when liberals gave us ObamaNation.