Voting won't do anything, by the same token. If you believe the value of the individual is miniscule, it really destroys most western values. If you don't believe a boycott alone will do anything, there is a petition being made, and many people are sending letters saying that they are boycotting and why. So Coca-Cola DOES realize it's going on.
And yes, Dr. Pepper IS a pepsi product. Sorry, I just copied and pasted that list from another site, I suppose I should have double checked it.