Everyone makes their choice as to how to deal with predators. I don't see killing as a first solution I see it as a last and final solution. Not everyone is a "bleeding heart" that does not shoot first. I warned a neighbor after his dog was chasing some chickens that I would shoot it if it comes to that but would prefer he contained the dog. Sometimes other solutions take more effort and people are unwilling to make that effort.
"The ecosystem is something we humans have long since removed ourselves from and I have no intention of rejoining it"
I don't understand this part of your post. You are by definition part of the ecosystem as long as you exist in it and affect it.
'a biological community of interacting organisms and their physical environment.' It is impossible to remove yourself from the ecosystem unless you leave the ecosystem (leave not die as you would still be part of it dead). You would have to go off planet.
As far as the OP, anyone starting any endeavor has a learning curve.
You are smoking dope.