I'll explain this in the simplest terms as possible.
I never said eating dairy was bad for you. However, I did say if you cut out Dairy from your diet you will in turn cut out all of the shite of the day that people put into their bodies because Dairy contains a big dollop of shitty fat the every biscuit, cake, cheese, sweet manufacturer wants to use to make their product taste better. So, by cutting out dairy you inadvertintly WILL lose weight because you will improve your diet. It is possible to cut out products that contain dairy EXCEPT straight Milk and get the same results unless you drink a ridiculous amount of the stuff.
Milk is not as good a source of calcium as people make out because it contains poor levels of Vitamin D, which is required to absorb calcium. Milk does provide a good source of calcium IF you have high levels of Vitamin D from other sources in your diet. There are other sources of calcium available in other foods so contrary to popular believe iis not actually required.
Those who suggest we NEED milk may be shocked to know the 5,173,725,000 people in the world (75%) who don't drink milk are not cripples in wheelchairs or dying slow and painful deaths.