I love your song Thomas. I do a song poking fun at veggies myself - my Parrott Song. I have been vegetarian since 1987 when I was recovering from hepatitis B. It stopped me waking up in pain at night and I never had another relapse. I don't like to get too moralistic about being veggie - especially as sheer cowardice and self interest were my motives for stopping meat. I was probably a latent vegetarian before, but I always used to say, "Eating animals is wrong - but they taste nice!"
When I was travelling a lot, it was not always easy to get food. I Prague, for instance, even lentil salad had dead pig in it. (My theory is that after the fall of the Communist dictatorship, they had all these dead pigs lying around which they didn't know what to do with....) Personally, I am open to new foods (without animals). However, I like it when guests come to my house and do not even notice that they are eating veggie food. Fear not the veggie!