I think you may have misunderstood my post. The reason I'm doing this is to take them out of the ecosystem in a way that doesn't include killing them. In my mind, no matter how invasive they are, each individual doesn't choose to be that way, they're just living life, so it's impossible for me to kill anything. But I want to help get rid of invasive species, so I'll be taking wild babies out of their nest in spring so that they can't grow up into the wild and continue to be invasive. Eventually, I'm hoping i'll be able to get the population to go down a bit, since there won't be a lot of babies to grow up into adults and replace the ones that die.
Basically, I'm not going to be saving them, I'm going to be doing what I can do to take them out of the wild where they cause harm, without killing them.