I dislike Rooooth intensely and I agree she is being hypocritical making such a big deal of being with her kids this Christmas when she didn't give two hoots last year when she was in New Zealand......but...........
I think she is right about trying to tolerate Toe-beeee up to a point. However much of a plonker he is and however much the family dislike him and want it to be over, as it stands he is Pip's boyfriend and if they can't at least be civil to him they will alienate her, and she's so contrary that it'll make her stay with him longer than she should. She speaks and behaves with the emotional maturity of a teenager, but she's in her twenties - at this point any long term partner may be "the one" - the man she marries, has kids with etc. By being so foul to him now they are setting themselves up for a long term family rift with her and poor relationships with her children - all this could effect the future of the farm and how they hand it down.
Rooooooth's a pain, but she can see all that and wants to prevent it - she's just probably going too far the other way.
Jill needs to but out. She can be a martyr in the kitchen if she wants and she's entitled to an opinion, but no adult grandchild needs to be spoken to about their choice of partner the way Jill did to Pip.
Pip's entitled to her choices and she's entitled to make bad choices, all anyone else can do is watch, and be there for her when Toe-beeeee inevitably disappears off to Brighton, most likely when she's doing the Christmas Day milking.