I stand corrected.
What I should have stated is that the PRIMARY byproducts of beer are CO2 and alcohol.
As far as the "quality" issue goes, I don't think anyone is saying that they are lower quality as you would compare a $12 a gallon house paint to say a $25 a gallon paint. The $12 a gallon paint isn't as durable, the $25 paint is guranteed for 20 years. That's not what we are comparing here.
My whole issue is with people who are afraid to try new things. I HATED beer until an older friend of mine who had been in the military in Germany introduced me to wheat beer. After that, I was hooked. Before that I had tried to choke down that Busch in a can in the parking lot after work, but to me it was absolutely disgusting.
Now I wouldn't call Bud, Miller Lite, and Coors "disgusting", but to me they taste pretty much like carbonated water with a splash of beer. It kind of flies in the face of what beer had evolved into over the course of a few thousand years, which was a flavorful beverage with character. Of course even the lighter flavored beers from around the world (like Kirin Ichiban, for example) actually have something that I would consider to be character. An individual taste.
To me "real" beer is beer that has a distinct flavor. The really cheap American stuff like PBR and Busch and stuff is nothing more than cheap swill. The other stuff like Bud, Miller, etc. doesn't taste BAD, it's that it just doesn't TASTE. It's like in the Wonder bread example. Wonder bread has no character. I doesn't taste BAD (matter of fact I prefer it with grilled cheese!) but given the choice I will take a bread that actually ADDS a dimension to my sandwich, like a whole grain, a potato bread, cuban bread, pretty much anything but the stuff only the people in the US will eat.
Like I said.....if you like it, that's cool. You just can't deny that it doesn't have much going for it to excite your senses as some of the micro brews and imports do, and I don't drink beer simply to get drunk, I drink it to savor the experience.