Religions and religious sects are conceptual frameworks that enable one to attain a nonconceptual state of being, without having to go through a parade of neverending conceptualisations in samsara.
Krishna, Shiva, Divine Mother all are different aspects of Saguna Brahman, and by adherence to the path, one can attain purification of consciousness.
Conflict in the name of religion or religious sects however promote discord and an impure consciousness due to the resultant mental agitation, which destroys mental equanimity.
As the Gita stated, " Equanimity of mind is yoga. "
And as Ashoka the Great stated, " Concord is virtue. "
Realising this, let us not create unnecessary discord while discussing over the various aspects of Saguna Brahman.