for all this anthropomorphic nonsense about animal cruelty. Bambi/Dumbo/Skippy etc could NOT REALLY TALK.

1) There are too many Kangaroos. This damages the habitat for other animals.

2) Therefore they need to be culled. Rifle/shotgun only really viable method, also least cruel.

3) A joey without a mother will not survive, it will starve to death, which is cruel.

4) Therefore it needs to be culled - quickest/least cruel method would be gun or skilfully delivered crack to the head.

Humans are top predator, you can't just turn that off and not interact with the environment.