What can you do with molten aluminum and a colony of ants?

The opinions of people are divided between two extremes. Some people think that this is a work of art, other people say that this is so cruel. What do you think? The author of the video: "These are the red imported fire ants which are harmful to the environment and their nests are exterminated by the millions in the United States using poisons, gasoline and fire, boiling water, and very rarely molten aluminum."