Roblosexuals are usually exclusively attracted to characters found in the game Roblox. Most of the time they usually want to engage in sexual intercourse with Roblox characters. In game, or irl.
Guy 1: "You know Greg right?"
Guy 2: "Yeah, isn't he the Roblosexual"
Guy 1: "Yep, he fucks Roblox characters, and nothing else"
Guy 2: "What a sick motherfucker"
Rabiosexuality is not the attraction to having rabies, that was a joke made by straight people that got seen by the queer community rather than the actual definition. Rabiosexual is a sexuality made by an Autistic person in the Queer community that was tired of straight people making fun of eccentric autistic people, and queer people that "shove their queerness in their faces".
"Oh, hey, by the way, I'm rabiosexual."
"What's that?"
"It means I'm autistic and queer, it was made to accept the bullying done by straight neurotypicals, like the song Yankee Doodle was originally made to make fun of America."