For me, people with opposing views are a valuable aid that forces me to really learn a subject.
Anyone that knows anything about baseball, knows that Babe Ruth was the greatest home run hitter, and the greatest hitter of all time. But what most do not know is that Babe Ruth has the record for striking out the most. If you don't swing for the fences you won't strike out as much, but, you will also not hit home runs.
If you get rid of, avoid every differing opinion, you will never learn anything new. There's a reason why God allows heresies, and that is it.