Another example might involve arguing that the disposal of hazardous waste is necessary because it’s a byproduct of a particular manufacturing process, while ignoring the question of whether that manufacturing process itself is essential or necessary. This fallacy occurs when one justifies an undesirable or harmful element as a necessary component of a larger practice or system without questioning the necessity of the entire system or practice.
An irrelevant conclusion… is the informal fallacy of presenting an argument that may or may not be logically valid and sound, but (whose conclusion) fails to address the issue in question.
And I’ll paste my other example here:
Another example might involve arguing that the disposal of hazardous waste is necessary because it’s a byproduct of a particular manufacturing process, while ignoring the question of whether that manufacturing process itself is essential or necessary. This fallacy occurs when one justifies an undesirable or harmful element as a necessary component of a larger practice or system without questioning the necessity of the entire system or practice.
I think this makes sense!
It appears to be a type of irrelevant conclusion.
http://www.philosophypages.com/lg/e06a.htm
Is this what you were thinking?