Japan is very conservative. Japan is also intolerant of others and xenophobic. They tend to be more monolithic than the US-there is very little diversity among the population.
Along with increasing the risk of liver, pancreatic and breast cancer, alcohol increases the risk of skin cancer including squamous cell carcinoma, basal cell carcinoma, and melanoma. Alcohol is also associated with an increased risk of oral cancer.
Risk increased proportionately with alcohol intake - those who drank 50g of ethanol daily (the equivalent of a few strong beers) were up to 55% more likely to develop the deadliest form of skin cancer called melanoma compared with non or occasional drinkers.