Sterling Point has no villains because the main villain is...
Dead. Its Goldie. Yeah, I said it.
I'm sorry, I feel like I'm taking crazy pills watching the characters romanticise her and fellow watchers do the same. I believe its because she's tied in to the aura of SP and she's, well...gone so it's easy for characters like Annie to take out their grief on Steven, the available parent. That's how it works in real life anyways.
Her actions would be correctively viewed as traumatising and abusive to her spouse if she was a man. Having a sterile spouse and having an affair with your teenage lover, then filing for divorce to have said affair's baby(to their knowledge) THEN trying to take their adopted kids from said spouse is villain behaviour sorry.
There's no reason: depression, stress, grief, even illness that suffices for the things she did. We reject those excuses when men make them irl so I don't see why they would count as excuses for Goldie. Also, I don't even blame Steven for withdrawing from Gordon and the rest of them. I can't imagine being expected to maintain a relationship with my spouse's affair baby and my ex parent in-law after the trauma of fertility issues, getting cheated on AND a custody battle, none of which were my fault. And before you say "if he had stayed around he would've found out Ramona was his" just know that if Goldie hadn't committed adultery in the first place everyone would've known Ramona was his. Also, how do you think the twins would have felt about her if he told them the truth? "Your mom cheated on me with her married ex-boyfriend and got a divorce and tried to take you to her childhood home away from me before she died?" What would that have served especially considering she was dead?? She died, they were adopted. That's what they needed to know at that point. Keep in mind they're still teens. There was still time to tell them and if anything he could have told them once they turned 18, things just didn't turn out the right way.
Also, I don't think Goldie is a bad person, per se. I'm just saying her actions were messy AND villainous. Her and Joe's actions were what led to the whole thing. She's lucky Steven framed her as insane and not an evil and selfish ghoul from the past . Steven's mistake is not getting much needed therapy for what SP's inhabitants put him through.