Hmm, does a one-shot injectable deer contraceptive exist?
Yea it called a bullet...one shot and it not ever going to reproduce again
So we have a left vs right solution
The left solution= Expense government (and taxpayer) program that still leave the deer consuming land resources with no return
The right solution= People freely willing to do the job and a profit to government and taxpayer (on sale of deer tags) land resources saved, and provided health food to people
So who is really more "green"