It's going to take more than voting

That may be true of most, but it certainly isn't true of everyone. For example, I don't vote, not because I don't care about what those in power do, but because I dispute the legitimacy of the power itself. Voting would be an expression of support for the concept that *someone* should hold the office, and its power, regardless of who wins. There is no way to vote for eliminating the office, or even simply leaving it vacant, so I abstain in protest to avoid legitimizing it.

A candidate receiving X% of the vote means that approximately X% of those who voted thought that candidate was preferable to the other candidates listed on the ballot. That's all. It doesn't mean X% of the voters support most or (especially) all of that candidate's policies, or that X% of the population at large would make the same choice.