King Arhat, being bewildered, gave up the Vedic principles, which are free from risk, and concocted a new system of religion opposed to the Vedas. That was the beginning of the Jain dharma. Many other so-called religions followed this atheistic system
SB Canto 5
Śukadeva Gosvāmī continued speaking to Mahārāja Parīkṣit: My dear King, the King of Koṅka, Veṅka and Kuṭaka whose name was Arhat, heard of the activities of Ṛṣabhadeva and, imitating Ṛṣabhadeva's principles, introduced a new system of religion. Taking advantage of Kali-yuga, the age of sinful activity, King Arhat, being bewildered, gave up the Vedic principles, which are free from risk, and concocted a new system of religion opposed to the Vedas. That was the beginning of the Jain dharma. Many other so-called religions followed this atheistic system.
When Lord Śrī Kṛṣṇa was present on this planet, a person named Pauṇḍraka imitated the four-handed Nārāyaṇa and declared himself the Supreme Personality of Godhead. He desired to compete with Kṛṣṇa. Similarly, during the time of Lord Ṛṣabhadeva, the King of Koṅka and Veṅka acted like a paramahaṁsa and imitated Lord Ṛṣabhadeva. He introduced a system of religion and took advantage of the fallen condition of the people in this age of Kali. It is said in Vedic literatures that people in this age will be more inclined to accept anyone as the Supreme Lord and accept any religious system opposed to Vedic principles. The people in this age are described as mandāḥ sumanda-matayaḥ. Generally they have no spiritual culture, and therefore they are very fallen. Due to this, they will accept any religious system. Due to their misfortune. they forget the Vedic principles. Following non-Vedic principles in this age, they think themselves the Supreme Lord and thus spread the cult of atheism all over the world.