Number one, think of the tax revenue! People love drinking pop, even with all that corn syrup crap in it, and the sales, if legal, would fund a lot of stuff for the government.
Number two, oh come on, it's gonna happen anyway! How many people do you know who already drink pop? Come on, you probably do yourself.
Number three, we have the right to drink whatever liquid junk we want, not matter what it does to our bodies, including making us fat as hippos and giving us diabetes.