Well, you are actually correct on both counts. The conservation dept does want to reduce the herd AND it is in the best interest of the herd. The two go hand in hand. Would it be great to have millions of deer running unabated through your county? Actually, no. Regardless of the impact on traffic and urban areas, there is not enough food supply to maintain an unlimited population. Also, the larger the herd, the more weak and diseased animals you will have which will lead to more predators. I will give your local game managers the benefit of the doubt and assume that THEY don't want mass killing either. They just want to maintain a proper gender balance in the herd.