Deep-rooted myth of cousin marriage based on Poor Research?

I don't care IF Albert Einstein married his cousin - it's wrong. I say this only because my cousins are in no way worth marrying. Plus, they're very ugly - my siblings and I obviously got all the GOOD genes (have I already mentioned how pretty I am? and modest?). So, once again I'm shut out of the whole "kissing cousin" thing. Now, let's say my cousin were JOSH HOMME, well then - I'd say: Cousin - start your engine!! *grrr*