"Digger" > wrote in message
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> If the vegan society want to pretend that human milk is
> a valid source of nourishment for vegans to consume,
> then they have no rational basis for excluding the milk
> sourced from other animals.

No. Veganism is a lifestyle that avoids the exploitation of animals.
The case in which human mothers breastfeed their children is not
exploitation. The case in which human mothers feed their children
dairy milk is exploitation. You can't just blanket define anyone who
comsumes milk as non-vegan without considering the exploitation
issues. Agree with it or not, there's your rational basis.