What about global warming? Space junk? Plant and Animal species becoming extinct etc. I expect you'll say those all tie back to politics and yes, they do to a degree. But having a strong political opinion doesn't suddenly change the world. We have limited time on this earth, I chose to invest my time into local things I can have some influence over. I agree I am extremely lucky to be in a privileged position to take this stance.
1. One should participate in representational political processes as a matter of self-interest and civic obligation, even if it's just the absolute bare minimum of voting
2. Pursuant to that obligation, one should take the time to develop at least a basic understanding of the differences between the major political factions so that one's vote is not a completely random choice. Every adult should be able to write 2 gradeschool-level paragraphs comparing and contrasting the general principles and policies thereof.
3. Even if one does neither of the above, one should recognize that normalizing and rationalizing political non-participation is damaging to society if it influences others to do the same, and should thus be avoided.
Sound fair?