Well, the entire problem is putting a bazillion cows in a little area, to produce as much milk as possible with as little overhead.

Thus, cows in a bad environment are stressed, further, they are often standing in filth, and so are weakened to disease and more prone to disease. (double whammy)

And, the "govern-cement regulators" allow this horror to exist.

Basically, if the cow is sick, do not drink the milk.
That's all you need to know.

But, when you have hundreds of cows, you can't know which one is sick, or even if one is sick.

And i have personally seen the benefits of raw milk.

I can say the opposite too, back when everyone drank raw milk, no one was lactose intolerant.