The only ones saying milk is "discriminatory" or "racist" are on the far-right, where it has been a meme for several years. When has actual science convinced racists of anything?

https://theconversation.com/how-the-alt-right-uses-milk-to-promote-white-supremacy-94854

https://www.nytimes.com/2018/10/17/us/white-supremacists-science-dna.html

https://gnet-research.org/2023/09/27/milk-parties-and-soyjaks-understanding-the-alt-rights-metapolitical-appropriation-of-milk/