That is actually NOT logical though. You have conditioned yourself to dislike the taste and smell of meat. You might as well say that a dog salivating when it hears a bell is logical.
Of course it's ok, and in a lot of cases, preferable, to not behave logically.
But you would maybe eat meat if the flavor/aroma were OK, no? I realize this is getting into a 'duck typing' sort of question but I don't think "I just don't like the taste of meat" is really what most people think of by vegan/vegetarian.
I don't eat mashed potatoes, but it's not because of some reverence for the humble potato or concern about industrialization of farming, it's just because I don't like the taste.
(There are few things as useless as discussions about nutrition at Hacker News.)