Question: I'm practicing writing and have been trying particularly hard to write different types of character relations. If in a story, the antagonist isn't exactly standing in the way of the protagonist himself but the society in which the protagonist lives. What if the protagonist doesn't necessarily think so badly of this antagonist and if someone suggested that the two were alike, he wouldn't be so insulted. Supposing that the protagonist's qualms with the antagonist are fairly minor and not enough to kick him out to door to do something about it but more as in he's expected to fight the antagonist because his society wants him to. Does this create a dynamic where his society is now his enemy or is he just kind of isolated with two villains or is it something that I have not considered?Answer:
It sounds as though you need to separate the ideas of protagonist/antagonist and main character/impact character.
Perhaps your main character (principle point of view) is not really the protagonist. The protagonist should be someone who really wants to defeat the villain. Your main character may be someone else who is involved but not leading the charge.
Similarly, the impact character (the one who can say to the main character, "We're a little bit alike") may or may not be the antagonist. Nonetheless, his function is to provide the main character with a different perspective, so that the main character must decide whether to switch to the impact character's approach or stay the same.
In other words, the main character may be watching the struggle between the protagonist and antagonist. He may be tempted/pressured to side with the antagonist/impact character, and must make a decision at the climax which way to go.
It's that dilemma that creates the tension.