Trying to organize it into objections and arguments for does not allow for proper explanation according to tradition. Maybe one should use different articles for Theravada and Mahayana, so the ideologies do not get mixed up. I will check back later and add some info on Mahayana Buddhism. greetings
There is not a lot of factual information available, so I'd again encourage contributors to take a look at the following (long!) article, that discusses both (1) what we know about vegetarianism in Theravāda Buddhist orthodoxy, and (2) how we know it, and why it is still a subject of controversy.
Each of the Theravāda cultures has its own history of vegetarianism, and there were internal debates (and diversity of opinion) about all of this stuff prior to European influence (and continuing independently of Chinese influence as well). Even some of the most impoverised and isolated tradiitons (e.g., Karen Buddhism, within Burma/Myanmar) have some remarkable veg*n traditions --that were neither the result of western influence nor interaction with Chinese/Mahayana outsiders.
It's an interesting issue --and the "knot" goes all the way back to the ancient canonical texts themselves. 188.8.131.52 19:22, December 31, 2012 (UTC)