I accomplish plenty. Sooner or later someone has to take responsibilty for what they do and how it affects things.
Some people, (many here) think in short term it's better to vote for bad people because they are scared of worse people. I'm not one of them. I think that in the long term, voting for what you want is a better way to actually get going in the right direction. I'm not content to get worse slower.
If you take baby steps toward hell, sooner or later your shoes will be on fire.
Using your method we might be on fire before we can do anything about it.