[snowwrestler]

By this argument houses would also count as alive because they “reproduce” via humans building more houses.

(When you feel compelled to “air quote” a key term in your argument, that’s a clue you probably don’t have a good argument.)

[Razengan]

You know that kind of reduction isn't the same thing.

Earth+Life is a different entity than Earth on its own, or any other planet.

Earth allows and protects life, and life in turn influences Earth. That kind of symbiosis on such a scale is in a class of its own, with no other equivalent or analogy that we know of. It deserves a special classification.