I don't see what is the inconvenience of creating evil.
If there is no evil, how could a person do good?
(Matthew 5:46-47)
"For if ye love them which love you, what reward have ye? do not even the publicans the same?
And if ye salute your brethren only, what do ye more than others? do not even the pagans so?"
I mean, if all people are created good loving beings, would being good and loving have any sense?