Sure, but beer isnt (and frankly the apes are still one up on some of the beer drinkers i've seen. You never see apes saying "hold my friut...").
For that matter most of the things that go into beer are natural (ish), but that doesn't make beer a 'natural' thing. Just made of natural things.
It's not like it's a huge deal or a grey concept - "natural" or 'nature' or the like just refers to things that happen as a result of the intrinsic properties of a thing rather than by choice or interference of another thing. It's natural that sugars by their nature break down and ferment under the right conditions, it's not natural for bud light to be brewed and put into a can and sold to people who don't know better. It is natural that some people will abuse that beer and do something stupid.