"Messing with God's plan" is only one way to arrive at this conclusion; I agree with your objections.
As I see it, killing people simply isn't in the gamut of options we should choose with our free will. Ten Commandments state "thou shall not murder" but without an immediate justification; just don't.
As I see it, killing people simply isn't in the gamut of options we should choose with our free will. Ten Commandments state "thou shall not murder" but without an immediate justification; just don't.