It's still always written as her reason for not being close with her family, and she's made multiple attempts to reconnect by that point each time this being the reason it hasn't been successful. Like with her mom being disturbed the fact that her daughter may be dead or the part of her daughter she spent years with being dead, and carol also realizing that that part of her is dead or severed. It should be the consistent reason why she can't connect anymore, well, up until stohl's Life of CM after infinity countdown.
They said they had allies in space and a power level argument is a subtle way to broach "what if we could call them"I don't think there was any chance that they could call in Captain Marvel to deal with Wanda. Jimmy wasn't broaching the topic at all, it just seemed like Monica was a having a lot of strong feelings when it came to Carol.
Under claremont he still did love her, in whatever way you can imagine where abuse still happens. Like her mom would try to bridge the gap and carol would acknowledge that he did love her even though i don't know how. I guess its more that carol had her dreams and goals that were incompatible with his belief system so he tried to make her fit in it while she never really could leading to all that friction.