YOU SAID:

vote if you have to put so much useless effort into something you don't care about

INTO JAPANESE

興味のないことにそんなに無駄な労力を費やさなければならないなら投票してください

BACK INTO ENGLISH

Vote if you have to waste so much effort on something you don't care about

INTO JAPANESE

興味のないことに多大な労力を費やす必要がある場合は投票してください

BACK INTO ENGLISH

Vote if you have to put a lot of effort into something you're not interested in

INTO JAPANESE

興味のないことに多くの労力を費やさなければならない場合は投票してください

BACK INTO ENGLISH

Vote if you have to put a lot of effort into something you don't care about

INTO JAPANESE

興味のないことに多大な労力を費やす必要がある場合は投票してください

BACK INTO ENGLISH

Vote if you have to put a lot of effort into something you're not interested in

INTO JAPANESE

興味のないことに多くの労力を費やさなければならない場合は投票してください

BACK INTO ENGLISH

Vote if you have to put a lot of effort into something you don't care about