gmab: and who says nowadays that the methods of farming used are assur? You? The big Rabbonim at PETA? No major Rav paskens that the methods are assur.
Even R’ Kook, who is held up as the example of a Jewish Rabbi who was a vegetarian, wasn’t really one. Do some research, and you’ll see that. He did hold that when Moshiach comes, the world will revert to what it was originally, and we won’t eat meat. Until then, however, he never said it was assur. His son, R’ Tzvi Yehudah, was a vegetarian for a short time, but because of health reasons, not halachic concerns.