Mary Douglas's account of pollution as classificatory disorder, "matter out of place," is the dominant reading article one presents, but it is not the only influential one, and biblical scholarship has since offered a different account of the same material she analysed.
Jacob Milgrom's commentaries on Leviticus argue that Israelite impurity centres on death and its symbolic associates, corpses, certain skin conditions, genital discharge, rather than on classificatory anomaly as such; on his reading the system is fundamentally about the opposition of life and death rather than about categories violated. Jonathan Klawans has pressed a further distinction Douglas's framework does not make: between ritual impurity, a natural and morally neutral state requiring only purification, and moral impurity, generated by acts such as bloodshed or idolatry that pollute the land itself and cannot be washed away by ritual means. The distinction matters because conflating the two, treating menstrual impurity and murder as the same kind of thing, is a common misreading these scholars were writing against.
Contemporary religious communities argue over the same material rather than only its academic interpretation. Orthodox Judaism retains the laws of family purity and mikveh observance largely intact; Reform and Reconstructionist Judaism have generally set the purity framework aside as inapplicable outside a functioning Temple, while some feminist theologians within more traditional communities have sought to reclaim and reinterpret mikveh practice rather than abandon it, arguing the framework can be redeemed from within rather than only inherited or discarded.