The film was make to let us know about the importance of nature. The plants were sacrifised in order to create the civilization and as the beautiful nature started dissappearing, the characters started to suffer. This indicated that we are not able to live without the help of nature. Also I thought that the main guy not forgetting about the nature and the act of trying to protect them saved them. It means that we must be aware of the environmental problem that we are facing and we must not forget to protect and thank nature for protecting us.
While watching varmints, watching the happy part was no problem. However, as the film started to get more dark and the characters seemed to be suffering to breath, I was also suffering to breathe😂