Pink Flamingos and the Cultural Politics of "Nature"

Price provocatively suggests that even though we'd all like to think that pink flamingos have nothing to do with nature, they in fact embody our relationship to nature because "Nature and Artifice" are "locked together absolutely in the same history" (113). In 2009, Madison, WI named the lawn ornament its official bird.

Plastic and Lawns: As American as Mom and Apple Pie....
The pink flamingo, as an emblem of American nature-artifice relations, is an extension of the American love of plastic and of lawns, arguably two of the most evil icons in the environmentalist imagination.

What are some ironies that the pink flamingo symbolizes? 
Is the pink flamingo potentially subversive? 
In what universe, that is, does Water's film Pink Flamingos operate as a class critique of elite and heteronormative views of nature? 
From a "queer ecocritical" perspective, why does the pink flamingo stand in for queer pride, and what does this have to do with nature?

Or do pink flamingos only "kill the ability to distinguish between art and life" (134), and therefore only "transgress" the boundary between the fake and the real (i.e. "nature")?