Do not criticize others’ methods of religion

We should not criticize others’ methods of religion. There are different
types of religious systems operating under different qualities of material
nature. Those operating in the modes of ignorance and passion cannot be as
perfect as that system in the mode of goodness. In Bhagavad-gita everything
has been divided into three qualitative divisions; therefore religious
systems are similarly categorized. When people are mostly under the modes of
passion and ignorance, their system of religion will be of the same quality.
A devotee, instead of criticizing such systems, will encourage the followers
to stick to their principles so that gradually they can come to the platform
of religion in goodness. Simply by criticizing them, a devotee’s mind will
be agitated. Thus a devotee should tolerate and learn to stop agitation.
>>> Ref. VedaBase => SB 4.22.24