Animals are slautered 'cruelly' - who decides the meaning of 'cruel'?
Why is one life form - plants, trees, vegetation - different from another - animals?
Both life forms eat, drink, digest, multiply and die, but 'blood' and 'visible emotional' give preference to animal life over vegetable life. One is superior to the other and non veg. or meat is 'wrong' and vegetation is 'OK'. Logically, all life forms should be treated equally as long as they are 'produced' for human consumption. Therefore, eating a wild mushroom such as a truffle is just as evil as hunting deer.
Beauty, Monstrosity, Dirt, Gore lies in the eye of the beholder. Even now, if I were to see a dying dog I would feel horrible - but I would be indifferent towards a dying flower. Illogical, but true.