Except we have done gene editing since forever. We just did it the hard way. You want the tastiest beef? Well, we spent thousands of generations getting there. You want a Yorkie? Same amount of time breeding a wolf into four brittle sticks that yap.

Don't get me wrong, I like both tasty beef and Yorkies. I just don't lie to myself about how we got them.

God gave us this world to rule over, from the very beginning per Genesis 1:26. As long as we aren't trying to breach heaven and usurp His authority (Babel's goal), we are not out of our bailiwick to change what's here.

Now, using it to hurt others? That's against his further wishes on how we are to treat animals earth, and each other.