I would eat breast milk ice cream, and I don't really get why other people find the idea so repellent.
I mean, really, if you eat dairy, what you are doing is already more disgusting.
Humans drink the milk of cows, eat the cheese of goats and slurp the yogurt of sheep. We eat the mozzarella of a big, fat buffalo.
We consume the mucous-making life fluids of animals that are not us. That, if anything, is gross.
So, bring on the breast milk ice cream. I'll eat it up.