You bring up a lot. To directly address the takes on Eddie, he’s not interested in the “glamor.” He was obsessed with 80s slashers: gritty, violent, and chaotic. He was intended to lead the Chainsaw Drill Team, which was gritty, violent, and chaotic. Hostile Territory was gritty, violent and chaotic. His Revenge last year (despite having elements of comedy) was gritty, violent and chaotic. He rarely, if ever, speaks. He uses a chainsaw because TCM was his favorite movie. The mask is to hide the burns on his face.
He just wants to kill. He’s not a “siren.” No element of his character or his backstory indicates that at all. He is, literally, the HHN equivalent to Leatherface.
You also bring up Marco Gras, which proves a bit of my point. Actual Mardi Gras is known specifically for a certain level of debauchery and is highly sexualized (how did you get beads again?). It’s Fat Tuesday, where you’re able to indulge yourself before Lent. Basically, it’s a celebration of the “obscene.” So, yes, the entirety of Mardi Gras is intentionally sexual and all the “characters” are celebrating exactly that.