The Red Queen's information indicated that Dr. Birkin's goals had grown after taking over the company.
From Dr. Birkin's point of view, there were violent conflicts and even wars between different countries due to the large population in the world.
Moreover, the gradual development of human technology led to various problems, such as environmental pollution and a population explosion. Hence, the world could no longer bear the burden of human development.
If the situation continued, the entire world's resources would be completely depleted. At that time, various problems would erupt and might destroy the earth. The catastrophe would also destroy human civilization.
Hence, Dr. Birkin thought, "So, why not I do something?"
"Why did I have to watch all this happen?"
"Why should I allow the world to be destroyed?"
"Isn't it better for Umbrella Corporation to do something and start an apocalyptic purification?"