Does the danger not lie in the dosage? Is the actual chemical make-up of hard liquors more dangerous? I understand that it's easier to consume greater amounts

Does the danger not lie in the dosage? Is the actual chemical make-up of hard liquors more dangerous? I understand that it's easier to consume greater amounts of alcohol when it is in higher concentrations. Surely a person drinking a mix drink containing 2 shots in an two hours cannot be more dangerous than someone gassing 6 beers in an two hours, right?