So I suspect very low milk prices probably didn't help.
Anecdotally it seems to me the market these days is for milk products like Greek yogurt and aged cheeses.
Also, I was bored one day and watched a lot of dairy farm videos - it's become very automated, where just a couple of people can manage an enormous herd of cows, and the cows even have better living conditions than at typical farms.
So that probably drives the massive overproduction as well since it's so easy to have a running farm.