Is calling myself as Sunni or Shia considered sectarian?

In the name of Allah, As we know that Allah warns people that make sect as already stated in Surah Al-An'am (6:159) > Translation: Sahih International > > Indeed, those who have divided their religion and become sects - you, [O Muhammad], are not [associated] with them in anything. Their affair is only [left] to Allah ; then He will inform them about what they used to do. If I call myself as Sunni or Shia, do I fall under the words become sect in that Ayat?