Graham Linehan did a quick video on Graham Norton today, on YouTube. He seems genuinely hurt about it, and addresses GN personally in the video.
I would like to know of Norton would, as a gay man, TOTALLY accept that a female to male trans person is now a man, and if they SAY they are a gay man, they are a gay man, and if GN would then be fine having a sexual relationship with them.
I suspect he knows the difference between men and women when it counts.