Green, believe me, I put the squirrels out in a "safe neighborhood". There are thousands of acres of forest for them to re-establish. I do not harm them in any way. You will have to ask my neighbor not to hunt them. I don't kill animals any longer. And no, they were not here first. The neighborhood was built on farm land without trees. The first trees were planted six decades ago when the neighborhood was first established and have been planted ever since.
I guess I could simply remove the bird feeders, remove all the tropical plants (they sometimes destroy valuable budding orchids), not worry about them digging up the yard and landscape, and quit growing vegetables. They would still be around but at least I would have no cause to remove them.
The squirrels are still here, just a more limited population of them. I will never trap/relocate them all, since the neighborhood will always have them.