I think the commercials are funny, and I could see the whole south african thing swinging some nationalistic miller drinkers over to the bud side of the fence.That doesn't mean that I think Bud needed to do it. They have by far the largest market share of the big 3 brewers and that's not likely to change because of Bob Odenkirk debating a horse.
Also, Miller's tried to sue to get the 'queen of carbs' ad off of the air.
Now, regarding the statement that all American beer sucks... Not all American beer is made by the big three brewers. There are a whole lot of good craft brewers in America. Here are a few:
http://www.sierranevada.com/
http://www.newbelgium.com/
http://www.rogue.com/
http://www.anchorbrewing.com/
http://www.stonebrew.com/
http://www.victorybeer.com/
There are many more. Before you slam American beers perhaps you should try to learn something. If all I ever heard of American music was the Backstreet Boys I'd think that all Amercan music sucks.