Muslims are not unethical and unjust...

However in many cases, Islam does specify different set of rules for men and women separately....shall we call that 'double standards'?

A big NO, why bcoz we know OUR creator, My LORD Allah understand and knows better and HE knows the BEST and WISE, suggested the best instructions for our own benefits.

NO WAYS, One consider that ISLAM allows men to visit Bars & have alcoholic drinks....Its Haram for all muslims.period
Peace