I didn't want to read or get involved in any of this silliness but after seeing a couple of posts I feel like maybe I have something to offer.
So firstly hime I think the best approach with Finalbeta is to ignore him. Justifying yourself like this will change nothing as he will just change tack and pivot to something related and create the feeling like you're talking past each other. In terms of the part where you say "I know most judge it anyway", I don't think this is the case. I think when you're made to feel guilty about something you can feel the need to prove yourself otherwise or in this case mention that it exists as if it's common, but it's important to recognise it for what it is - a manipulation tactic designed to get you to engage with him.
I can of course only speak for myself but the way I see it is that no one who should matter to you would judge this sort of thing out of hand, and also that most people tend to be more charitable than you think they are.
I don't believe for a moment that Ekko believes Beta is some reformed character and more to the point, I don't thibk he cares one bit whether he is or not. Indeed, the welfare of people, particularly the women, on here, is of no concern whatsoever to Ekko. I'm addressing this to you and also to
@Dr. Watson who I saw got frustrated when responded to Ekko, you are not reasoning with someone who is just a bit naive and sees only the good in people, I.e someone like Fuji. You are responding to someone who sees this as it is and simply doesn't care.
Ekko's motivation is wholly selfish - he hasn't enjoyed the last few games and likes Finalbeta and so wants him back in the games for his own interest. He doesn't care about any human cost associated with that so you are never going to make him understand your perspective. You are only going to get yourself upset and annoyed at going back and forth with him. I say this to you both as, well I wouldn't be as presumptuous as to call us friends but someone who would rather not see you upset on a personal level. The best thing that you can do is ignore Ekko because there is nothing earnest about this in the slightest from his part.