Hindus: Who is a true Vaishnavite?

Sanatana Dharma is enough. Vaishnavite is the first division. These only serve to divide humanity. I would consider those who are devouted to Vishnu is Vaishnavite and those who are devouted to Shiva as God head is Shivite. These are human minds in dualistic states of existence. The middle and the ends without beginning. The philosophy of undifferentiated Brahman which includes Brahma Vishnu Maheshwara, and the dualistic world and the monistic God are all contained in the Existence Consciousness Bliss eternal is worthy.