Such a pseudoVaiṣṇava is not a Vaiṣṇava at all, but a disciple of Kali-yuga

One who is envious of the success of a Vaisnava is certainly not a Vaisnava himself, but an ordinary mundane man. Envy and jealousy are manifested by mundane people, not by Vaisnavas. Why should a Vaisnava be envious of another Vaisnava who is successful in spreading the holy name of the Lord? An actual Vaisnava is very pleased to accept another Vaisnava who is bestowing the Lord's mercy. A mundane person in the dress of a Vaisnava should not be respected but rejected. This is enjoined in the sastra (upeksa). The word upeksa means neglect. One should neglect an envious person. A preacher's duty is to love the Supreme Personality of Godhead, make friendships with Vaisnavas, show mercy to the innocent and reject or neglect those who are envious or jealous. There are many jealous people in the dress of Vaisnavas in this Krsna consciousness movement, and they should be completely neglected. There is no need to serve a jealous person who is in the dress of a Vaisnava. When Narottama dasa Thakura says chadiya vaisnava seva nistara payeche keba, he is indicating an actual Vaisnava, not an envious or jealous person in the dress of a Vaisnava.

(Sri Caitanya-caritamrta, Madhya-lila- 1.218, Srila Prabhupada)

A jealous person in the dress of a Vaisnava is not at all happy to see the success of another Vaisnava in receiving the Lord's mercy. Unfortunately in this Age of Kali there are many mundane persons in the dress of Vaisnavas, and Srila Bhaktivinoda Thakura has described them as disciples of Kali. He says, kali-cela. He indicates that there is another Vaisnava, a pseudoVaisnava with tilaka on his nose and kanthi beads around his neck. Such a pseudoVaisnava associates with money and women and is jealous of successful Vaisnavas. Although passing for a Vaisnava, his only business is earning money in the dress of a Vaisnava. Bhaktivinoda Thakura therefore says that such a pseudoVaisnava is not a Vaisnava at all but a disciple of Kali-yuga. A disciple of Kali cannot become an acarya by the decision of some high court. Mundane votes have no jurisdiction to elect a Vaisnava acarya. A Vaisnava acarya is self-effulgent, and there is no need for any court judgment. A false acarya may try to override a Vaisnava by a high-court decision, but Bhaktivinoda Thakura says that he is nothing but a disciple of Kali-yuga

(Sri Caitanya-caritamrta, Madhya-lila- 1.220, Srila Prabhupada)