We find it hard to seek confronting opinion of a matter we want to believe to be the truth.
If you want a candidate to win an election and your research revealed that he is likely going to win, it will take a lot of persuasion to convince you to consider the alternative facts.
We naturally want to defend our opinion. This makes it hard for us to think clearly.
The world is evolving. What you think is the truth now may no longer be one the next day. Better to be hurt by the harsh truth than to live in the illusion of a utopia. Seek to challenge your opinions even though it is uncomfortable.