Secession Could Fix America

Today I have a thought experiment for you. Lately it's becoming increasingly obvious that this nation is filled with many different cultures, and different groups of people who live at odds with each other. So, the question is, what is the answer moving forward? With the American Empire over extended and trying to shove ideologies that are not compatible with everything we believe in, down people's throats. What is the reason why this nation must stay unified? If there is no reason, does that mean either a national breakup or divorce is the answer, or is secession the answer that could fix America.