If that is your opinion then there is no viable solution. Unless tyou want to competly disconnect everyone in the office and seal them in anechoic chambers then your going to get noise. Headphones in open offices are a nice middle ground that can make _most_ people happy. Some people will never be happy, they appear to be concentrated on the internet.
To some, headphones are just another form of noise and distraction and not a solution to the problem.