Assalaamu alaikum Muhaba,
I'm afraid that this is not true on dairy farms here in Canada. When we had a dairy cow, I got a newborn calf from the nearby dairy farm to put on her (as she produced way more milk than we needed, and we wanted to grow the calf for meat). They separate the calves at birth, and then ship them off for auction.
Personally, I think that modern industrial farming is not at all what would be Pleasing to Allah. I therefore try to find sources of food that are not industrial wherever possible. If you know a small local farmer who does organic, ethical, grassfed or community shared agriculture (CSA), this is the best, I think. Industrial food is not only cruel, but it tends to be unhealthy, too. Not to mention, the agribusiness workers may not be well-treated. Sometimes you can slaughter and butcher yourself (it's a lot of work, though…), but other times you may have to make choices as to what you can obtain to eat. Frankly, until I recently found an organic Halal meat producer (alhamdullillah!!!), since we left our little farm in Nova Scotia, I have had to choose whether to get industrial "halal" meat or healthy (but perhaps not "halal") organic meat. I compromised on getting "halal" mostly, but sometimes (especially when people were sick) getting organic chicken meat (chicken slaughtering methods being a bit of a grey zone in the scholars debates, from what I have read).
For milk, while I would not label it as haraam (twinkle. I wouldn't dare declare something like this haraam; the penalties before Allah are too high!), I would suggest that a lot of industrially produced milk is not the best option. If you can find more ethical, smaller dairies, I believe this would be more Pleasing to Allah, and better for your health.
May Allah, the Majestic, Bless all those (like simplymuslim) who show compassion towards His Creation, and who want to avoid that which is not Pleasing to Him.