This is laughable and absurd. Eating meat has nothing to do with caste. Please don't make assumptions based on some shitty article. It clearly has an agenda.
Now, let me tell you what Indians do make fun of. If you are a hardcore vegetarian, meat eating Indians will make fun of you calling you "Grass Eater" as a joke among friends. But that is not too different than American culture as well. Even the legendary Arnold Schewarnegger in the movie "Escape Plan" said "You hit like a vegetarian".
That's simply incorrect. Meat consumption correlates strongly with caste and the traditional reason is that it's a signifier of high social and religious purity. The American equivalent to this is teetotalling which is more prevalent among high social status Protestants. (essentially the US Brahmin class).
And even today of course vegetarianism has the same function. Vegetarians in the WWest as well as India are still more affluent and educated and it's a sign of civilized behavior, self-discipline, moral status etc. Arnold, as a bodybuilder (derogatory term "meathead" is no accident) may be rich but as an actor isn't a traditional upper class member.
I've always associated religious teetotalism more with low church/Evangelical protestantism (e.g. Baptists and Methodists) rather than 'high church' denominations in, say, Anglican/Episcopalian, Presbyterian, or some Lutheran sects. The former doesn't exactly seem like high social status to me.
Now, let me tell you what Indians do make fun of. If you are a hardcore vegetarian, meat eating Indians will make fun of you calling you "Grass Eater" as a joke among friends. But that is not too different than American culture as well. Even the legendary Arnold Schewarnegger in the movie "Escape Plan" said "You hit like a vegetarian".