Consumer
Your argument requires that you convince everyone that they don't know what the word 'consumer' means. But they do:
From investor.com:
"An individual who buys products or services for personal use and not for manufacture or resale. A consumer is someone who can make the decision whether or not to purchase an item at the store, and someone who can be influenced by marketing and advertisements. Any time someone goes to a store and purchases a toy, shirt, beverage, or anything else, they are making that decision as a consumer."
dictionary.com
"noun
1.
a person or thing that consumes.
2.
Economics . a person or organization that uses a commodity or service.
3.
Ecology . an organism, usually an animal, that feeds on plants or other animals. "