Unfortunately, not voting because you don't support the system is indistinguishable from those who don't vote because they don't care (from the perspective of those in power) -- All the more reason to write in "none of the above" - thus not supporting any of them, but actively showing refusal of all of them.  If 10% more people quit voting... I don't see how anything changes.  If 10% wrote in none of the above, now you're talking major headlines