Are you even a Singaporean born & bred?
By our Civilian Singapore Maritime Laws, NONE is allowed to drink or be intoxicated while boarding vessels. Even the US Navy had BANNED drinking alcohol on board ships, except under extra-ordinary circumstances & even that, at limited capacities so as to be able to of sober service the next day.
However, those three were not found drinking onboard vessels, but on land, should alcohol consumption be the cause IF proven, when the brawl occurred. Thus your accusations, presumptions, allegations & pathetic attempts at MISDIRECTION are MOOT.
As the insignificant nobody me had advised earlier - Do go back to your concerns with the cost of living, MRT lines, elections due, etc, putting food on the table for your loved ones instead, than to dwell on subjects which your clouded judgements, bigotry, hate, ignorance, etc, is taking up full space within the limited capacity between your ears to make a better judgement over issues.