I agree on this. Unfortunately, people carry this tactic too far. Then the focus of the debate is lost to a wave of conjecture, personal attacks, and biased views.Poking holes in the opposing viewpoint is the only way to debate. Otherwise you are just reciting your feelings.
As this trend continues. It is as though resolving the issue loses importance as people only care whether they are right or wrong. Once this happens, any meaningful discourse is routed.