The difference between armed robbery and the failure to give full disclosure when selling something a person knows is defective are also different as night and day. It doesn’t make one right and the other wrong.
The reason it is wrong to murder is because God said not to murder. It may be that some murders are more horrific than others, but it is not an excuse to commit “lesser” murders just because what other people do is worse.
When you set aside God’s laws and replace them with personal opinions, like it is “clear as night and day” and “reasonable people” think so and so, you are using the same moral judgment as those who rationalize any other kind of murder. To them it is clear and reasonable as well.
In the end we all must give account to God for what we have done. We will be judged, not by what we think should be right and wrong, but by God’s laws in which He has revealed those things He commands to do or not do.
Very true.