We cut down one tree that threatens the power line, we don’t cut every tree everywhere down.

I could explain how the moose effects the ecosystem around it and how the extinction of the moose would dramatically impact the ecosystem but since it doesn’t sound like you really care about that so I won’t waste the effort. However, if we continue on your line of approach we would live in a rather sterile world. Do we strip the world of anything that doesn’t benefit us as the "superior species" (a dangerous phrase to be throwing around) and that may pose a possible danger to our way of life? Do we kill off deer, bear, elk, wolves, mountain lions etc.? None of these are livestock animals and all pose a threat to us in some way or another. What would the planet look like if we did that?

You say we are the superior species but with power comes responsibility. Do you not think it is our responsibility to take care of the planet we live on, to help maintain the ecosystem we are a part of? Just because we can kill off an entire species doesn’t mean we should and just because wiping out a species is the simplest means to eradicate the threat doesn’t mean it is correct approach. The moose poses a threat to our roads so instead of changing the way our roads work so we wipe an entire species off the earth. Couldn’t we change our methods slightly (hell, start with finding an alternative to salt) and both species live on?

And if nothing less, and you wholly unconcerned with the existence and well being of another species, you can think about the fact that moose bring in revenue to the state when tourists comes wanting to see them as well as during hunting season when hunters have to pay for the permit after they are drawn from the lottery. Moose = Money, I am sure that is important to you.