Truth emerges from dialogue. Did you know that the foundations of Christian doctrine were framed in early Church Councils? Were you aware that there were various beliefs within Christianity discussed at these meetings? Often Christian teaching is more aligned with indoctrination than critical conversation.
An exchange of ideas does not erode nor diminish truth. Truth is light. It exists. Its power is clearly known in darkness, no matter how ‘small’ the truth. Never feel that your voice is too small to have an impact. Recognize you are a light and share your experience in the faith. You are a living epistle. It is ok. Help someone.
So, let your light shine before men so that they can see your good works and glorify your Father who is in heaven. Mt 5:16.