Do you feel that Evolution denialism based on the Bible (eg, YEC) is overall harmful, helpful, or neutral toward Christianity?

Please elaborate on your answer, as I recognize my question is quite open-ended. Here are some related questions that might be helpful to your responses:

  1. Does Bible-based evolution denialism have an effect (positive, negative, neutral) on how much of the world views Christianity.
  2. Is it important for evolution-accepting (eg, scientifically literate) Christians to explain to evolution-questioning Christians how science is compatible with Christianity?

I realize this question assumes that evolution is supported by evidence. Therefore, the question is inherently directed at Christians who accept such evidence. To the other Christians, you are certainly free to comment as well, as I welcome the evolutionary evidence-accepting Christians to respond to my OP in reply to your comment as to whether such a comment is overall good for Christianity.