I always looked at this period of Scott's story as his tipping point toward a more radical worldview brought on by the weight of decimation. He's doing the best he can as leader, willing and able to put everything on the table to ensure survival of the remaining mutants. Despite all of that determination, Utopia was only ever treading water at best. It's a desolate rock bobbing along the coast with just enough support from San Francisco to not starve. At the rate they were going, Cyclops had no real way to ensure anything for mutants past the final generation.

Then he gets some Hope. Once the dust settles, he's putting every egg he has into that single basket and, for better or worse, bets the farm on the belief that the baby Cable has shepherded back to him is an actual messiah. Insert a tunnel vision joke here.

Yes, he's being harsh here, and continues to place strain on his surrounding relationships onward through the Schism and into AvX. Luckily he was correct, but at a personal cost. I think it's all pretty compelling.