It's not a silly question.

The sex of a therapist is very important to me. I would never consider a male therapist as I would not feel safe being vulnerable with a man. Actually, I don't even like reading on this forum about female posters with male therapists.

There is nothing wrong with feeling uncomfortable with a male therapist. The therapeutic relationship is intimate and sometimes unpredictable, you need to feel comfortable. Feeling reluctant to work with a man is a valid response and not something you need to work through, change your mind about or ignore.