Final answer:
The author of "Border walls bring unnecessary burdens" would agree that the border crisis is a humanitarian crisis and that border walls may have negative consequences. They would also disagree that the consequences of border walls on migrating animals should not be considered.
Step-by-step explanation:
The author of "Border walls bring unnecessary burdens" would likely agree with the statement that the border crisis is a humanitarian crisis. This is because the author expresses outrage at the apathy expressed toward migrating humans and highlights the risks and consequences faced by individuals and families trying to cross the border.
Additionally, the author would agree with the statement that border walls may have negative consequences we haven't considered yet. This is evident in the author's argument that the daily migration of workers and the access to water for migrating animals are being ignored.
Lastly, the author would also disagree with the statement that the consequences of border walls on migrating animals should not be considered. The author, along with environmentalists, points out that many barriers violate federal statutes regarding the access to water for migrating animals, indicating that the impact on migrating animals is indeed a concern.