I'll add here that the Ligustrum is already present all through our land and we're not introducing anything here. We're making use of a plant that has already made its home on our land. If we didn't already have it, I wouldn't consider introducing it. I wanted to do wax myrtles but was unable to successfully transplant them in sufficient numbers to satisfy the requirement here.
You're right that for some people this is a hornets nest, and I know a lot of people get really emotional about invasives and I'm not going to get embroiled in that.