I assume you're an atheist but you continue to use words like "superior". From what foundation are you making these value statements?
Assume me to be a Buddhist. I think that a set of rules that doesn't require you to kill people worshiping other gods is better than one that does. Do you think I'm wrong?
Do we live in the ancient world as a part of a large extended family that will be wiped out by neighboring nations if we don't maintain our collective identity?
Are you trying to make a point that ten commandments are man-made and they did not withstand the test of time?
No, that they were intended for a specific group of people in a certain time in history.
All of those commandments are not meant for us, or just the parts about killing the sinners?
There's a New Testament book called Hebrews that answers this question exhaustively. You should read it. In a nutshell - Jesus gets killed instead of the sinners.
