I don't get vegetarianism - full stop.
So, the animal doesn't get eaten by you.
It gets eaten by someone else.
Also, where's the line between animals being sentient beings and becoming a fruitarian - where fruit and vegetables are living things, so pulling them up is "murdering" them.
If people object to the conditions the animals live in - there are organisations such as P.E.T.A who campaign for animal rights etc. If an animal isn't mistreated before it's death, I don't see what's so "wrong" about carnivorism.
Plus, I agree, you cannot be a pescetarian and still maintain your argument that eating an animal is morally wrong, because they're sentient beings. A fish has just as much right to be alive as a cow. We're not talking about eating intelligent animals such as dolphins either; cows, chickens and fish are all fairly low on the IQ scale. Pigs, however, are apparently moderately intelligent.