But, as you say yourself the distribution of matter in the Universe (according to current models) is asymmetric precisely because of the CP/T asymmetries in Boson numbers, et al. The observed macro effect is a result (we think) of past micro asymmetries.
Are there any other “observed macroscopic effects” other than the non-uniformity of the universe?
This something I’ve thought about before. If you play a movie backwards, nothing you see at the macroscopic level will be physically impossible to the best of my knowledge; some things will just be wildly, astronomically improbable. In other words, all of the macroscopic asymmetries between past and future that I can think of are only due to statistics and the fact that the universe isn’t in perfect equilibrium. Do the microscopic asymetries observed in kaons have any other macroscopic effects at all?
I pretty much agree with your Orbifold, the asymmetry is for the most part statistical. Though I am aware of kaons, my knowledge of them doesn’t really go much beyond their time-asmmetry when they decay, but I’m pretty sure any effect they have on macroscopic systems is neglible.
You know what? It kinda sounds like stars and planets and life and such are just little happenstances, little bumps on the road to universal thermal equilibrium.
Good quesiton, orbifold. I don’t know the answer.
To the best of my knowledge, the questions of how/to what extent/if at all quantum probability effects “scale upward” to macro probabilities is unanswerd. Hence the lack of a determinative answer to the question of free will. 
My own suspicion is that observed probabilities are not entirely independent of quantum probabilities. Sometimes it really does matter exactly where the virtual particle pair materializes. But that might just be because I really like the thought of having a free will.