Micheál Martin should talk to the orphaned conservative voters
Neither side in the marriage referendum campaign is happy with Fianna Fáil right now. The No side isn't happy with them because the party officially supported the Yes side. The Yes side isn't happy because the party wasn't enthusiastic enough.
To risk a quote from the Bible: "Since you are like lukewarm water, neither hot nor cold, I will spit you out of my mouth!" And that's exactly what the Yes side has done to Fianna Fáil.
So where does that leave them? Fianna Fáil tried to look cool by hanging around with the cool kids, but the cool kids knew they were faking it.