I just stumbled onto this thread - so I'm sure that someone has already said all this, but I'll throw in my $0.02 anyway ... The fact that they're vegans didn't kill the child - the fact that they're COMPLETELY EFFING STUPID is what killed it. It wasn't malice - it was ignorance.
Now, I have nothing against the vegan lifestyle. If some unwashed, unshaven hippy freak wants to avoid using animal products at all costs, that's fine by me. Honestly, I think the story focuses too much on the fact that they are vegans, and not enough on the fact that they are mindblowing idiots.
Never attribute to malice what could easily be attributed to stupidity.
Here's a question: Why didn't mom breast feed the kid? Even if mom lives on carrots and granola and wears everything made of 100% cotton her boob-juice should have sustained the kid. Seems to me the perfect way to force your lifestyle on a poor unsuspecting baby.
Does human milk qualify as an animal product...?
Didn't the fact that a 6 week old infant was only 3 1/2 pounds tip them off? If a newborn LOSES weight - even a few ounces, something is very wrong.
That should be patently obvious to even the most casual observer.