Yes it 100% fucking is.

Given the choice between ruin the country and the planet in that order and "this candidate is uninspired" or "wow not very good", you have to be a giant entitled sack of shit to make everyone go down the road of ruined country and planet. We would ALL like it to be a better choice, but for christs sake don't be an obstinate fuckstick: it's not getting you a better candidate, it's literally just punishing everyone if you stay home.

Choose between: "you might get to choose a good option again", and "you almost definitely won't". That's what's on the table. You HAVE a preference, but it's not an inspired choice. When it's orange Hitler vs green Hitler, by all means, make your stand. If you are making a stand between orange Hitler and "meh" you deserve a brow beating every hour of every day until November.