Meanwhile the Trump administration argues a border wall is beneficial to the environment? This article takes a skeptical view.
I could see how perhaps vehicle barriers might be beneficial in keeping places roadless. I see much less argument for replacing vehicle barriers with pedestrian barriers or for redirecting floods or for maintaining clear zones.
The border wall is an ecological disaster. Thousands of scientists have said as much. The federal government has said as much. And recent images of wall construction workers bulldozing cacti have shown it writ large.