Consumer activist: By allowing major airlines to abandon, as they promptly did, all but their most profitable routes, the government's decision to cease regulation of the airline industry has worked to the disadvantage of everyone who lacks access to a large metropolitan airport.
Activist's Claim
The government's decision to deregulate the airlines and allow major airlines to abandon all but its most profitable routes has worked to the disadvantage of everyone who lacks access to a large metropolitan airport.
Industry Representative's Implied Conclusion
This decision worked to the benefit of people.
Industry Rep's Evidence
Any place where a major airline abandoned a route, regional airlines moved in and now there are more flights in and out of most small airports than there were before.
Evaluate
Since the rep's implicit conclusion is that , we could state linking assumptions like,
"more flights = an advantage" "flying on a regional airline = advantage"
But since this situation is a pretty messy Net Gain / Loss type of comparison, we'll probably see a Defender answer, so let's think of possible objections.
How could the situation, on balance, be worse for someone who doesn't have access to a large airport? They now have more flights coming in and out of their local small airport, but those flights are run by regional airlines not a main airline.
So objections could be like,
Goal
Let's look for an answer ruling out an objection or otherwise feeling like what would need to be true in order for "more flights, but via regional airlines" to qualify as an advantage for consumers.