But it's NOT designed primarily to kill more people. It's designed to shoot faster. The software here in this case was deliberately designed from the ground up, priced, and distributed to those with ill intention to harm markets and to conduct illegal trading activities. False equivalency. Not my opinion, a fact.
Just because you say it's false, does not make it so. The bump stock changes the function of the gun to fire more bullets quicker.
It therefore can be used for evil to kill lot's of people. Sorry, I can't think how it can be used for good since if you in the Army, you get better weapons anyway.