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The Animator component in Unity is responsible for controlling animations of GameObjects. It plays and manages the animation clips, which dictate how the GameObject will move and behave over time. Since the Animator itself is what drives animation, toggling it on or off would disable the entire animation system for that GameObject. If the Animator component is disabled, animations will not play, and the GameObject would essentially not respond to any animation-related instructions.

On the other hand, components like scripts, colliders, and renderers are designed to be responsive to runtime changes, including enabling or disabling them through animation clips. For instance, scripts can have their enabled state manipulated in animations, allowing for alterations in behavior or functionality dynamically during gameplay. Colliders can also be toggled, which allows you to control whether a GameObject can collide with others at any moment. Similarly, renderers can be toggled off to stop rendering an object without affecting its other properties.

Hence, the Animator's unique role in controlling other animations rather than being just a toggleable component is why it cannot be managed in the same way through animations.