Good points.

I think where we disagree is the question of whether slaughter is necessarily undignified or disrespectful. When I say "treat them with dignity and respect" I think the experience of the animal up to the point of death is what's most important. The slaughter, if done humanely and quickly, is not inherently immoral to me. For example, I think most people would agree that it's better to "put down" a suffering pet than let them die of natural causes.

My problem mainly lies with industrial farming practices like battery cages.