Sectionalism and Nationalism

dear journal,
about a month ago my family and I moved from up north down to South Carolina. So I am hear to tell you the difference in Sectionalism and Nationalism and what i am for. first of all, up north we believe in the nationalism, we want to stick together, be one nation all together, and that way America doesn't fall apart. Us northerners believe that the south and north are one nation and Abraham considered the south as part of the US when he was president. Sectionalism is most believed in down south, and they don't want anything to do with the north. the south want to be separated from us because we are very different and it wouldn't make sense if like for example, Germany and Africa joined as one nation, because they are totally different kind of people. Sectionalism from my understanding is being separated or having a liking of one region over the whole nation. The south liked the south and didn't want to be part of the north or anywhere else.
Journal, when I see and hear all this about nationalism and sectionalism and i have to choose which one i would rather believe, i think that if we were separated and broken down into small colonies, then our nation would be so poorly protected and strong. South Carolina is a very nice state and if its part of a little nation then i would think differently about it because everything that is now would be very different if it had not been all one nation. I choose the nationalism because we need the other states to make this nation and the bigger the stronger as well.