If one is actually Krsna conscious, he cannot have any enemies. Since his only engagement is to induce others to surrender to Krsna, or God, how can he have enemies? If one advocates the Hindu religion, the Muslim religion, the Christian religion, this religion or that religion, there will be conflicts. History shows that the followers of religious systems without a clear conception of God have fought with one another. There are many instances of this in human history, but systems of religion that do not concentrate upon service to the Supreme are temporary and cannot last for long because they are full of envy. There are many activities directed against such religious systems, and therefore one must give up the idea of “my belief” and “your belief.” Everyone should believe in God and surrender unto Him. That is bhagavata-dharma.

From Srila Prabhupada’s purport to Srimad Bhagavatam, Canto 6, Chapter 16, Text 41