If you have causes you are passionate about but you refuse to participate in the (hard won, bloodily won) civic right of voting, then your ability to affect those causes will evaporate. No matter how much you think your government doesn't care now, they will care even less when it is truly, wholly, dictatorially unaccountable to you. And then what? What was your anti-voting stance for?
A substantial chunk of the electorate seems to prefer losing and then whining about outcomes as long as it allows them to pat themselves on the back for 'staying above it all and seeing the futility all along'. I implore you instead to care, hold your officials accountable, and vote. A bad future is not inevitable.