Yeah. I would probably remove that whole line, to be honest. Hearing Leia say that someone “seduced (her) son” makes me uncomfortable no matter what pronouns you use or whether you follow it up with “to the dark side.”
I’m almost positive they were going for a callback to Obi-Wan’s “Vader was seduced by the Dark Side of the Force” line from ANH, but it does come off as awkward hearing it from Leia.