What's bias? Governments who waste money subsidising the livestock industry - and the industry itself? Or vegetarian websites that have no CoIs whatsoever in relation to the milk industry?
P.S. There's no accounting for tastes... :P
Governments waste and make money no matter who's right, in the end. If it were true that cow milk was bad, that would be an excellent excuse to tax the crap out of it and make even more money, like they do with cigarettes. Of course you can't trust the industry, but you can't trust a vegan organization either; their credibility and, by extension, their survival both depend on their version of events being true. Best you can do is trust universities, who get enough money that no matter what they do, in the end, it doesn't matter what's right since they're still getting subsidized and leeching off of students. You can always trust in greed.