You steal source code from your past employers?
Additionally, you are confusing stealing with making unauthorized copies.
Monks used to write books out by hand. If you were to go to a monastery, and copy a book line by line, you will have taken nothing at all. Nothing will be lost.
It's not taking, it's not stealing. It's just making a copy. You are the one doing gymnastics.
Nothing is lost from copying.
It's stealing. You're taking something from the owner without permission. Just stop with the mental gymnastics.