Many others will make their voice heard by refraining from doing so, and it is them that are most likely to hand over power to the wrong people. I once thought that 'people get the government they deserve' (at least that's what I've been led to believe Alexis de Tocqueville said regarding democracy) but now I think that people get the government others condemn them to have - and this is not because they majority voted for it but because the majority declined to vote!
Those who refrain from voting are, sadly, in my view quite pathetic (yes, I know that might be considered to be rude). Those who bleat about not having a voice or not being able to make a difference or not really being interested condemn the world to disaster and consign the future into the hands of people who are not fit for role.
So here's a heartfelt plea:
