I hate worldbuilding because I find lot's of logical, political or social irregularities. And I just can't go with a simple "because it's magic".
I completely understand where you're coming from. However, life is full of logical, political, and social irregularities. Hence Dubya.
For me even a origin of a race must be explained, so I can't put an antrophomorphic creatures without having explained, at least in my head, how come they're here and how in the world they're able to live, survive, communicate, etc.
I do this, as well. I explain lots of details as to how and why things are, from the physical features to the most obscure of cultural details, such as the effects of musical aptitude on sexuality in this culture :p
It drives me nuts that I can't make a world in motion because of my fondness of logic and searching every single bolt that isn't in the right place.
This is not a weakness! Do not think of it as such! Just learn patience, and you can utilize this to your advantage!
To go along with the thread, I'm a sociology student (or rather my lazy ass me tries to be) and we have a lot about utopias. I'll have to deliver a lecture on this saturday about renaissance utopias based on "Utopia" by Thomas Moore, "New Atlantis" by Francis Bacon and "City of the Sun" by Tomasso Campanella.
I have a negative feelings towards these concepts, because most end up as a dystopians, yet I can't say I don't find them interesting. For a robots, not for humans, that is.
There's nothing wrong with disliking utopias. However, the overabundance of Dystopias in modern Fiction is a problem. Next time, try creating something in between for more human cultures.