General question about the possibility of objective moral truth

[Chad32]

Morals are subjective. Is it ever ok to kill someone? Most people would say yes, meaning it's subjective. The bible seems to give more examples of when you can kill someone, than when you shouldn't. What determines when it's ok can be based on objective data. If you're stuck in a corner, and it looks like someone is going to have to die, or get seriously injured, then it might as well not be you.

Objective things exist in this world. Right and wrong are not objective, but you can use objective means to figure it out. As a social species, there is a need for us to work together. We have rules for getting along, and one of the basic ones is don't kill each other. This tends to break down the father you get from your group, though. Strangers get dehumanized to the point where almost anything is acceptable if there's motivation for it. Torture is at the extreme end of this.

There's objective data saying that torture isn't constructive. I can get you to say anything I want to hear if I inflict enough pain. Despite this, many people say it's justified somehow. their morality is different, because they refuse to see what studies show.