Agree wholeheartedly with hissy re:
I don't think you CAN allow your DC to have a relationship with people that are ultimately poisonous. These people won't change. I think you need to understand that they are warped and will never be healthy people to be around.
Ultimately they have no rights to see the children, and if you see that they are harmful to your children (which they are) then you can cease contact.
I would say to this that not only can you cease contact but that you must . They are desperately toxic people - why are you working so hard, 'bending over backwards' to keep these terrifying people in your children's lives? It's a crock of shit that just because they are awful to you, the children have a right to a relationship with them. (I say it's a crock of shit because it's the one I fell for myself - and I am paying the awful price, as spelled out in the original thread.)
I don't, however, agree with this:
In time you can tell them why. If you meant, hissy, telling the toxic MIL/STBXH why you have cut contact, you would be on a hiding to nothing. They will slaughter you: they will never accept what you have to say.
I am stuck really : you are stuck if you continue to try to make workable what is unworkable: the fact is you can't facilitate a relationship with these people, period.
So yes, I can refuse kids contact with their grandparents, and start a massive row that I dont have the resources to fight. You don't have to fight any fight - cut contact. Move if necessary. Be as obstructive, evasive, nonresponsive as possible.
Well done for all you've achieved. Your posts suggest however that there is still an extremely high level of interaction with these horrifying people. Do you do that because you are still afraid of what they will think of you? yy you are doing it for the children (misguided imo, though I understand what makes you feel compelled to do it) but it seems you may still be sensitive of being accused of this or that (all heinous). Forget that: whatever you do, no matter how much you turn yourself inside out, they will still fire flaming missiles at you, so why bother to worry what they think? They are insane - don't measure your values against theirs.
Meanwhile they are mashing up your children in this horrific mess. One victim was enough (you); don't let, or facilitate, your children [continuing to] be victims of these horrifying people.
Freedom Programme , pronto, porridge. If you've done it already, do it again (as I am doing): it really is an extremely good course and goes a very long way to getting one's head straight re longstanding abuse.
Get away my dear, lock stock, to the very best of your ability. And then some.