Harmful-effect deniers argue effects are both unknowable and benevolent

Evidence

Those who run the networks and their social scientists vigorously dispute the notion that modeled violence has any harmful effects. The disputations often take contradictory forms. On the one hand, they argue that media effects are unknowable, because media influences can never be disentangled from the multitude of other determinants in the causation of human behavior. On the other hand, they claim that such programs have good effects. — Albert Bandura, Moral Disengagement, 871

Categorization

• XREF: Double standard of claiming unknowability of harm while asserting benefit parallels how socially conservative rationalizers treat evidence of discriminatory policy harm selectively.
• corroborated: 2 independent passages support this claim — Albert Bandura, Moral Disengagement: How People Do Harm…, 871