mohanB,

Food is one of the basic rights to survival, which is an essence to life. If you celebrate life, you celebrate food in whatever form or matter. You bring out slaughterhouses, thats a different business. I dont encourage cruelty, but at the same time I do not condone eating flesh.
If you are going to justify killing of plants for the lack of the screams and cries that animals often display, will it be alright, by your standards, to butcher animals when are sleep such that they do not "feel" any pain or will not have any time to react.

bored,

The entirety of your post does not prove to me the non-existence of God. May be we need to separate God from religion. May be we need to ask ourselves where we stand in this triangle of God, religion and our own identity. My bet is that further we stand from religion and closer we stand to God, better we will appreciate the relationship between the God and ourselves. That relationship, my friend, is the religion we need ...a customized one.