The character is who the writers and designers intended the character to be. Information about the character has been released through the cosplay/character guides, as well as a tweet by one of the writers linked above. So, that is who FL4K is in the game.
Players can individually either go with it, ignore it, head-cannon the character differently, or choose a different one entirely. But that is their choice; the writers have made a deliberate choice in creating this character, which resonates with many fans of the games and users of these forums.
Out of respect for the writers and other forum members, then, if any individual chooses to interpret the character differently, please don’t turn this into some issue over linguistics or anything else.
Now, can we all get over this and move on, please? The moderation team would appreciate it.