I am a Zoo

I am a zoo
I should not be me
I am disheartening
The humans make the animals suffer in my reality
The animals should leave me
The animals should feel the freedom
It is natural
It is precious
The humans easily visit me
The humans foolishly enjoy me
The animals should not follow my sadness
I am a zoo
I should rightly close
I should not weaken the animals
I am grievous
Please do not welcome me