Indeed! We must ensure that our harmonious society has no tolerance for falsehoods, only for the Truth. For the truth is... North Korea is best Korea.

As my geologist friend pointed out, a century ago many laughed at the idea of plate tectonics, but it's now foundational to earth science. As commenters have pointed out here, we do ourselves a disservice if we do not allow the discussion of other ideas.

To some. Without getting too deeply into philosphy, I think you'll be very hard pressed to prove any kind of threat to anything from creationism itself.