I believe Yes he is. He had the right idea, but the majority was against him. He kept to his morals and didn't jump on the band wagon.
I hope that helps.
In the book, it talks about how heroic it is that Cesar was saved and he didn’t drown. In the movie, it skips over this part of the novel, but just continues to talk about how Cesar is like a “god”.
It should be placed after the word mother