What metaphors are used in My Year of Meats by Ruth L. Ozeki?

The author uses beef as both a symbol and a metaphor for the dishonesty of the livestock business.

Another example of metaohr can be seen in the following quote:

“If there is one single symbol for the demise of regional American culture, it is this superstore prototype, a huge capitalist boot that stomped the moms and pops, like soft, damp worms, to death.”