Veganism...it's a very controversial topic, really.
In my opinion, people are free to choose what they eat, and whether or not their diet includes meat. On the one hand, you have the fact that people are omnivorous for a reason: so they can eat both meats and plants and get the vitamins they need from them to survive. Vegans can survive on just plants, and meat substitutes...as you all probably already know.
I've even tried some of those vegan burger patties, and I have to say they actually taste very good; however, I myself could never give up on real meats, not to mention I'd have to give up my two favorites: Fish and Chicken.
Vegans who choose to be that way because it's due to health reasons (some people are just naturally unable to digest meat), then I find it understandable. There are some who do it to follow a healthier lifestyle, and...while admittedly understandable to a degree, depriving a body that can eat meat, of meat for the sake of health...is actually bordering on idiocy. Then there are those who choose veganism for the simple fact of not eating animals and a clear conscious; these people are the worst, and need to be hit upside the head by a pimp with lots of big rings.
Yes, animals die for our consumption...but so do plants, as they are living, breathing things. And no matter how you look at it, both vegans and non vegans are killing a living thing for them to consume as food. Simply put...if you're pursuing becoming a vegan for health reasons, fine. If it's because your PETA's little flunky, then go to a vegetable farm and see the mass murder you people are causing farmers to commit daily.