The true pirate/fuck-you-i-got-mine mentality is pretending to hold some ludicrous moral position for personal social gains. Because pretending to be the good guy is a very easy get out of jail free card in a highly passive, risk averse societies like most modern Western countries. It's common human nature to side with whichever guy is perceived as being more "good" in an otherwise unsubstantiated conflict. Denying that the majority of people, normies especially, have pro-social instincts is almost as foolish as denying biological sexes exist. There is power in PR, a mediocre man with 100 idiots behind him can be more of a threat than any individual in many theaters.

Saying abandon morality is saying you should just join whichever guys have the current social advantage. Thinking personal interest will automatically drive people to oppose the prevailing crazy ideas of IDPol and biological denialism just means you're not approaching personal interest as smart as the rats selling out their fellow man for good boy points and kickbacks from the cult hivemind.