This is propaganda from the vegan lobby:

Cow and animal milk is unhealthy for humans, despite the propaganda from the dairy industry and their their 'science'. Such milk is intended to take a baby cow and turn it into an adult rapidly. Hardly the requirement of a human! Cow milk typically produces inflammation

There was a time when I consumed very little milk compared to myself in other times, and in these times my levels of inflammation were frightening.
When I lived more alone, and milk was my main food, my levels of inflammation dropped to zero.
Both CRP and ESR dropped from abnormally high to near zero.
I am almost certain that were other factors to it, but if milk was so inflammatory, my inflammation indices would not have dropped to zero regardless of the other factors.

the problem is that milk of this kind creates an acidic condition in the body which the body then has to try to resolve in any way that it can - which typically results in bones being leached of calcium to counteract the acidity.

In which part of the body does milk increase acidity and how?
I read about it in the past somewhere, but never saw or heard any convincing explanation to it.
My sources never claimed such claims.
At least some of them are bribed, and regardless I may be wrong and always learn new things.
As corrupt as the animal industry is, the vegan lobby is corrupt too, and has its own financially driven agenda, donors and sponsors, like soybean and other manufacturers of vegan foods.
I read a study that mannose, ribose, and other sugars that are in milk are highly inflammatory.
I believe it, but I also doubt it, because this study may be sponsored by the vegan lobby, or vegan food industry.
About milk, your reply was the first time that I encountered this claim.
Vegetarian oils tend to contain higher ratios of omega 6 to omega 3, which actually make them more inflammatory than animal oil.