I'm not the OP but what do those issues have to do with voting as voting currently works?
And why do you think it's warranted to be deciding how other people live their lives? What is "to get married" and why is it that a decision between two people needs to be chosen by you through "voting"?
Regarding war, why do you think anyone has the right to force young men to engage in a war they didn't start? Don't those young men own their own lives?
And so on and so forth. I'm not apathetic to any of those things but they're not solved (as can be seen in reality: they haven't been solved) by "voting".