Trudy refills Vincent’s cereal. He’s 2-3 years old and blind in one eye. He doesn’t need more cereal, he just needs his bowl rotated so he can see the cereal that was left over on his blind side. Not that we necessarily know how Vincent communicates without speech, but she hardly gives him time to answer her question about more before she’s refilling the bowl anyways. This is her approach to parenting her boys in general.
There’s no interest in fixing their actual issues. Rather than help Vincent to see what he already has in front of him, she’d rather add more, inadvertently also adding more onto the side he can’t see. At some point, this would just add to the issue. Overcompensation into overwhelm. Bo is brought in for breakfast kicking and screaming and it’s sort of evident why Trudy puts all her love into Vincent to the point of it being suffocating and unhelpful. Sure it could be a simple case of favoritism, but with the aspect of overcompensation specifically, it seems that she wants to balance her guilt over failing to parent one of her sons by pouring more effort than necessary into Vincent. Rather than giving the extra attention to Bo, it’s refilling a non-empty bowl of cereal.
I don’t think that necessarily mean she loves Vincent more. She finds him easier to parent. Fill the bowl whether or not he needs it because that’s easier than unpacking where Bo’s massive emotional outbursts are coming from. It seems more like love-bombing than genuine kindness. He’s “being such a good boy today,” but the implied part is an unsaid comparison to Bo. As twins, and conjoined twins at that, they’re not independent of each other. Vincent’s behavior exists only to contrast Bo’s, from her perspective. “Fix” his needs, and she can fix them both. Hence, preferring just to duct tape Bo to a chair than help him any.
Then Vincent grows up to become her protege, starting in his childhood but lasting until even after Trudy’s death. Over thirty years have passed since they were toddlers in those high chairs, but Bo gives a hint about why Vince got that ‘special privilege’ to not be as physically abused. “She always said that your talent would make up for what God took away from you.” Only, God didn’t take anything. Victor Sinclair doing illegal, unqualified surgery on his babies is why Vincent lost half of his face. Trudy only uses God’s name and religion as a shield for her own guilt about how her boys turned out. But it’s more likely she included Vincent in the wax business because she again, was dumping affection onto him over and over as her strategy.
Otherwise there isn’t as much favoritism between the boys. In their childhood photos, they both play piano, both play pool and baseball, both get to sit at the table with their birthday cake (without highchairs or bindings) and they play on the floor together. It's not entirely divisive between them, though it’s still obvious from which brother she’s slapping across his face and which brother she’s love-bombing which she’d prefer to deal with. Just not which she actually cares for more. Vincent wasn’t somehow spared from abuse in a house like the Sinclair household.
Interestingly, when Bo tells the story of Trudy and Victor, he mentions that once the Doc died, they were alone. Except, there’s at least one version of a prop newspaper stating that Trudy created a wax memorial for Victor. So this is just a false version of events most likely. Sure it could be that a decision changed, but there’s also the fact that, in the guns and ammo store, there’s a sign that says “Trudy’s Town or Wax.” And Bo tells Vincent, “We almost finished what mama started.” She’s also much older than the Trudy we see in the family photos and articles (even with the amount of cigarettes that woman smoked.) Ambrose is confirmed to have been abandoned for a decade, but to be turned into wax, Trudy would’ve had to die sometime between the abandonment of Ambrose and the present. Else she would’ve been properly buried most likely. The plan to fill Ambrose was hers, it’s just Bo that suggests using real humans (according to his apology to Vincent, he takes credit for the idea anyhow.)
Which makes her boys at least in their mid twenties when she died. In an older version of the script, Bo had killed her and Victor, but knowing it would put them all in foster care, that doesn’t quite make sense unless they were older. So the order of events is, Doc dying, the sugar mill closing, Trudy planning to reimagine Ambrose, and then dying herself.
The reason that’s important is because it’s emblematic of just how much pressure she was putting on both of her boys. And that’s not love. With two mentally ill, abused sons, (maybe three, since Lord only knows how they treated Lester once he came along,) that’s just manipulation. Victor and Trudy aren’t cartoon super villains for being bad to their boys. But when you can’t even just rotate a bowl slightly for your half blind little one, it’s shallow. Trudy has her cigarettes right in the boys faces in the opening and in most of the photos. Smoking was in one study linked to about 1/3rd of conjoined pregnancies, and in a similar case of conjoinment to the boys, one of the twins had lost an eye and had a prosthetic, but with minimal scarring because of the surgery being done in an actual legal hospital. It’s not about God taking anything, or about which is a little monsted and which is a very good boy- it’s about Trudy and Victor both messing up from the very beginning and causing the boys losses, then refusing to take accountability for it. Or, in the symbolic sense, to just do the right thing and turn a damn bowl of cheerios towards your blind kid.
