Originally Posted by
Nalla_The_Black
People tend to forget that Comic Clark would never kill a human, evil or not, or an innocent alien, but never showed a real issue with killing super-aliens that could fight on his level. He was never happy about it, and it was always his absolute last resort, but he would do it if he had to. In addition to your above mentioned example, he's willingly killed Doomsday, tried on multiple occasions to destroy Darkseid (he never succeeded, but intent is intent), and, correct me if I'm wrong but, he willingly destroied one of the Monguls.