What technique involves undermining a person’s argument by pointing out a minor flaw, rather than addressing the main argument?

The technique of undermining a person's argument by focusing on a minor flaw rather than addressing the main argument is known as disproving a minor point. This strategy sidesteps the core issues of the discussion and can mislead an audience into believing that the overall argument is invalid based solely on a small, possibly irrelevant detail. This method is often employed to distract from the larger argument being made, thereby shifting the focus away from the more critical aspects of the debate. Understanding this technique is essential in recognizing how arguments can be manipulated in discussions or debates.