sectionalism

/S EH1 K SH AH0 N AH0 L IH0 Z AH0 M/
noun
  1. 1

    Promoting the good of one division, department or subgroup over that of the whole.

  2. 2

    Promoting the good of one region over that of the nation.

    โ€œSectionalism is tearing the country apart. Everyone wants the other regions to do the work and pay the taxes while they reap the benefits.โ€

Source: https://en.wiktionary.org/wiki/sectionalism