We'd go extinct before that happens. Theoretically, the planet would be destroyed as well before that would even happen.
As for the OP, there are some things I won't eat out of principle or whatever... dogs and cats, although I have nothing against others doing so. Shark fin, and it's the same except I would point out that it is pretty horrible to eat it, and worst of all, pointless.
As for personal taste, just about anything goes. I'll try everything at least once, and then decide if I like it or not. As it turns out, I like pretty much everything
But not liver. Heart, intestine, lungs, spleen, kidney, stomach, love it all. Go to the 'ngau jap' stands all the time, but we always have to ask for no liver... ugh
And there are some things I prefer not to eat.. I don't really like drinking soup.. a little bit is OK, but I don't like being stuffed full with hot soup. When I order noodles, it's usually only 'stirred noodles' or 'lo mein' with the soup on the side.
That's about it... now you know not to get me liver soup!