Too many don't, they vote and consider it done with, but the voting is not the solution part of this. With how things are, particularly under FPTP voting systems, it is mostly holding off the worst of it until enough people feel disenfranchised enough to either not bother or vote for some far right conman or another...
Our only way out is by building systems of mutual support for ourselves and one another, but regrettably voting is much easier than that, so it rarely happens.