I don't think sexists or racists are monsters. I think sexists and racists are sexists and racists. The point is to cut the problematic behavior, not to determine one thing isn't as bad as the other and therefore nothing should be done about it.
You're also not describing "something you did 15 years ago", but things you've done repeatedly within the lifetime of the game likely since 2.0, which was the 2nd half of 2013. Perhaps even later.
I don't see you as a monster. I see you as likely a person who represents what they themselves are detailing themselves to be, which is someone who has repeatedly demonstrated problematic behavior in need of corrective measures, who has taken on an unreasonable stance of proposing the rules need to change to avoid them getting in trouble.