Interesting question. I think it's correct to say that the universe would NOT rotate light, simply because there's no energetic or entropic reason why it should. If you start with a simple prochiral molecule, it will give you 50:50 racemic mixture.
Basically, you know that if you start with achiral materials, you get racemic or achiral products. The only way we know to make chiral molecules is to a) start with a chiral material or b) make a racemic mixture and separate the enantiomer you want.
Since the primordial ooze didn't contain a bunch of chiral organic molecules, I think it's best to say that it's a racemic universe.
(Of course, if we make a bunch of L-amino acids and metabolize the leftovers to carbon dioxide, humans might have some enantiomeric excess. :-) )