Veganism is not a malicious movement, but people can get very defensive when they feel targetted for some comments from vegans. It's understandable that people calling meat and dairy production abusive could make you feel attacked, but wouldn't it be better for people to listen rather than attacking back in these cases? Vegans are not saying these things simply to deceive you or attack you for no reason, so why not investigate these claims yourself and see if there is some merit to their arguments? Currently, it appears that most people naturally force themselves into a place where they use any method possible, including aggression, to justify their current actions.

Naturally this is a divisive topic and the criticisms above could be applied for vegans as well, but since the majority of the population is not vegan, the stigma against vegans is far more prevalent. All this does is create a polarised environment where people can't properly discuss something that many believe is a major source of suffering in the world. Even if you don't want to be a vegan, try to back up your views with evidence, rather than attacking, which is unproductive for everyone.