Indicator sentences: What do you mean by this exactly?
Trigger words: causation
Indicator sentences: This is not causation, this is information theory, a field based completely on correlation.
Negotiation parts: It's not a logical fallacy because I'm not trying to claim causation. Sorry to contradict your "Winning Internet Debates 101" professor, but "correlation doesn't imply causation" is a little more nuanced than a trump card that you throw whenever someone suggests a relationship you don't like. On the whole, GDP per capita is one of, if not the, best single number we have that conveys a great deal of information about various indicators we do actually care about.
Trigger words: resources (2)
Indicator sentences: Doesn't definition of resource include availability?
Negotiation parts: Someone picking blueberries or nursing their own child is not making these goods and services available to other people, so the person is not increasing GDP with these activities. If someone is picking blueberries then we're talking about an available resource. Even if it's on the person's own property, it's still part of the large economy because it's part of that person's wealth. And the act of picking blueberries does have an effect on the economy, even if in the negative. In this case, the person's demand for blueberries is not provided by the market so it has an effect on the price of blueberries available to other people, who may not have access to wild blueberries.