Obviously you've never heard of the Babelfish. Just kidding.
Actually, this will work......
Why are there so many different ROOT languages, if the Tower of Babel incident was not an actual event in history?
It seems to me, that if Man had a starting point, either by Evolution or by Creation, our languages would NOT have such major differences. We have seen thru history the speed that languages evolve or change.
Simple. Man spread out BEFORE he developed languange skills. The historical record shows that not every region developed language at the same time, each region with it's seperation in both time and space developed one of the root languages. The closest thing we have to an absolute Babel style root language would be the grunts and howls of animals and new borns; while that's certainly a form of communication I wouldn't go so far as to say it's a language.