What the hell is up with Ridley Scott's fixation on milk in 'Raised by Wolves'?

This article contains some spoilers for Alien and Raised by Wolves Season 1.
Listen, I love Ridley Scott as much as the next girl — and I'm also never one to kink shame. 
But for sanity's sake alone, we need to discuss the indisputable fact that the seminal sci-fi director has a milk fetish. At the very least, the man has a notable artistic fixation with milk, to the point where it is now a staple of his filmography, from Alien to his new HBO Max series, Raised By Wolves.
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