Another easily refuted smear that is frequently spread on the internet is that the New Kadampa Tradition is sectarian.
Sectarianism is bigotry, discrimination, intolerance or hatred arising from attaching importance to perceived differences between subdivisions within a group, such as between different denominations of a religion or the factions of a political movement.
Geshe Kelsang Gyatso on sectarianism:
At the same time as cherishing our own tradition we should respect all other traditions and the right of each individual to follow the tradition of their choosing. This approach leads to harmony and tolerance. It is mixing different religious traditions that causes sectarianism. This is why it is said that studying non-religious subjects is less of an obstacle to our spiritual progress than studying religions of different traditions. From the book Understanding the Mind.
From the New Kadampa Truth website:
Truth: The NKT is not sectarian because we respect all religions and the right of others to choose what they want to practice, while we ourselves practice the teachings of our Mahayana tradition.
Read the full article Smear: NKT is Sectarian