>>97385185The basics of it is that Slim was a dude who wholesale bought into a better future for mutant kind, where everyone got along. He fought hard, trained hard, and suffered every bit of the way for it. A big focus of his character is self control, due to his power being both extremely dangerous and out of his own control. Thus he takes the inward control he has and applies it outwards. Master of kung fu, brilliant mental defenses, and plans for days in order to keep his people alive.
Over time though we saw through the events of Genosha, M-Day, and many terrible events the unwinding of his life that made him if not cynical, certainly cautious. Where the rest of the O5 could have gone on to have normal lives, he choose to stay at the school to help future mutants and be the leader of the X-men. He lost his wife, his species were at the brink of extinction multiple times, and worse. Through out it all we saw this loving, if awkward kid become a hardened soldier who would not his people suffer at the hands of others.
In the end he is somewhere between Charles and Erik, a balanced of idealism and cynicism bound in the practical. However, due to writing of events, editorial tried to push him in the wrong where outside viewers not only saw where Cyclops was coming from, but appeared to be objectively right. Thus, 'Cyclops was right' became a thing.
>TL;DR: Scott is a mixture of idealism and practicality who does right all the time, but suffers for his own flaws that keep him from being a mary sue. Also Editorial fucked him 
