The phrase "come from sides" implies a sense of unity or cooperation, but there are certainly antonyms that suggest division or disunity. Words like "oppose," "fight," "disagree," "contradict," and "contest" all imply a sense of conflict or disharmony. These words suggest that people are not coming together, but rather are moving apart. Additionally, antonyms like "go their separate ways" or "disperse" indicate that groups are dividing and moving away from one another. While "come from sides" suggests a positive sense of collaboration, it's important to remember that the opposite is also a possibility when groups or individuals are not on the same page.