Why is 3d in Spongebob illegal?

Because he is likely to be banned in Ukraine. It is banned because it is equivalent to a mine-"encouraging homosexuality". Ukraine's moral supervision department believes that cartoon pictures of Spongebob and his friend Pai Daxing often holding hands are likely to mislead children and make them "gay". Many netizens shouted for Spongebob: "Even Spongebob was killed lying down!"