First off. Let me preface my response by saying this: skin color has no effect of alcohol metabolism. Ethnicity does
. But ethnicity does not imply inferiority of intellect, culture, stature, wealth, etc. I'm not that guy.
Grain alcohols such as beer, wine, sake, etc are historically drinks of Europe and Asia. Being so, people that come from European or Asian descent are typically more capable of dealing with ethanol
, metabolically. Simply, we've adapted to a diet with ethanol. The common counter example is the Native American people. Alcoholic drinks were not common among these people.
There is much research on the topic of alcoholism. Some of this research is showing that Native Americans lack an important mutation in the gene for alcohol metabolism. What this means is they are less capable of dealing with alcohol metabolically than an anglo or asian.
One thing to understand though is that humans of all
races are only capable of dealing with one alcohol in large amounts; ethanol. All other alcohols (fusels) generally have bad physiological side-effects (hangovers or worse). For example, if you had a single beer with methanol instead of ethanol, you would go blind, and suffer irreversible liver and kidney damage and then die. If you drank a beer with all 1-propanol or isopropanol (rubbing alcohol) you would have massive GI hemorrhage, and likely go into a coma.
Thankfully, these and other high order alcohols are present in extremely small amounts. Even if you fermented your beer at 100ºF, it is unlikely that there would be enough of the fusels to do anything to you other than give you a nasty headache.