The Reps are well known to have no interest in any negative effects things man does may have on wildlife. Little to no interest in the environment. I believe 99% of them don't care beyond their own lifetime. They have the attitude to let those who come along in the future worry about the damage we're doing now to profit ourselves.
It's just galling how they keep saying the wall will keep most illegals out. The videos I saw showed men going right over part of the wall. I agree it will keep babies, children, the disabled and the aged out. But the ones the Trumpsters consider criminals, rapists and murderers, the men had little trouble getting to the other side.
And now to find out it will be costly for the Gov to pay for all the land it plans to take from those living along those hundreds of miles is, is what? I can't even think of word for what I feel. Those people deserve to be left in peace who live where the fence will go. They don't want to leave their homes. Their land. The financial cost to us and the emotional cost to perhaps thousands of people is depressing. I saw them tell reporters they don't want the wall. They are not having problems with aliens crossing their land though I know some have in the past. There are to my knowledge no studies being done on the effect this will have on wildlife.