Why was Catharism a threat to the Christian Church?

Question

-What made the Church want to anihilate the Cathars?

Answer 1

from what ive read, they were loved and protected by the Catholics, to the point where the Catholics died defending the Cathars, and the Pope at the time, did not like dissention, the fact that they were so loved made the Pope jealous
The wealth of the monastic orders and the intolerance of the bishops roused the contempt of the nobles who accused them of self-indulgence and lack of interest in the poor. The common priests, through the neglect of their superiors, had fallen into discredit on account of their poverty and illiteracy. Very different was the behaviour of the Cathars. Their eloquence in presenting their beliefs and their untiring care for all in need of help won the devotion of both nobles and common people. They became known by the name of bons hommes. When the leaders of the Catholic Church realized how widely the movement had spread, it was already too late to stem the tide.

It was inevitable that sooner or later the clash would come, for no expressions of faith could be more diametrically opposed between the Catholics and the Cathars.

The heretics were known by a variety of names. In 1165, they had been condemned by an ecclesiastical council at the Languedoc town of Albi. For this reason, or perhaps because Albi continued to be one of their centres, they were often called Albigensians. On other occasions, they were called Cathars or Cathares or Cathari. Not infrequently they were also branded or stigmatized with the names of much earlier heresies - Arian, Marcionite, and Manichaean.

Answer 2

Christianity is an impositive religion. First the Catholics wanted to impose themselves over pagans, and almost succeeded. Then they tried to impose themselves over the Protestant movement of Martin Luther, John Calvin, and others, but in the end, Protestantism succeeded. Then it was the turn of the Protestants to impose their views on everyone else, and some, still today, try to impose Christianity over others.

Catharism is not dead. It is not widely practiced even when some of the ancient manuscripts that Mani (210-276 C.E.) left, have been lost. Cathaterism is resurfacing as a new version of old Manichaeism religion of Persia, just like paganism has resurfaced in Europe and the Americas.

Answer 3

The Catholic Church always tried to annihilate heresy.
They tried also with protestants but were not successful.