Take the movies at face value and enjoy it! The songs were brilliant, the plot was fast-moving and didn't allow for a dull moment. I watched it with my 4-year-old daughter, and she has an eye for good movies. She watched "The Lorax" for the 5th time yesterday.
I like bloody TV series like Dexter, the overly sarcastic "Doctor House" and the sexually explicit "Game of Thrones"... and I absolutely love(d) "The Lorax". Give me more of the same. It was freaking funny, entertaining and endearing all in one.
Put aside your preconceived socio political notions and what you think the movie should be about... and watch it for its entertainment value. Nothing more, nothing less.