You must be a libertarian.
Not necessarily. I just know that being truly free means that some individuals might just participate in behaviours that I don't like. I accept that they are free to do those things if no harm is brought to anyone else.
Littering harms the rest of us, enforce the existing littering laws to address the problem of littering.
I will state that with the attitude of many "conservatives" right here on FR, the Libertarian party is looking more tempting.