The fallacy which is at play here is the slippery slope fallacy.
The person committing a Slippery Slope Fallacy assumes that a certain event or course of action will trigger a chain reaction of other events in the future.
Carefully examining the initial event however will show that there can be no such correlation or domino effect.
In the example above, the first event or observation is that trucks usually get low mileage.
The person making this statement assumes that because there is low mileage with most trucks, their owners should not be interested in protecting the environment.
A rebuttal is this: what if the same truck people who drive trucks also drive sedans and SUVs?
Another example of the slippery slope fallacy is:
Daddy has grounded me. Therefore I will not go to the party. Because I'll miss the party, I'll lose friends and will be alone forever.
Read more about Logical Fallacies here:
https://brainly.com/question/718969