If you could un-invent something, what would it be?

I think if I could in-invent anything in this world it would be guns. I know people including people I love use guns for hunting game but because of a gun I grew up without my birth mother. I lost a cousin. I know people say that if there aren’t guns they would find another way to kill and that’s true. There are other weapons. I just hate the mass carnage guns are capable of specifically automatic rifles.

Exodus 20:13New International Version

¹³ “You shall not murder.