Buckle up, because this is going to sound harsh.
His last marriage failed because he said he couldn't do anything right for her and she criticised him constantly
I suspect what he construes as 'criticism' was actually desperation as she did what you are doing now, in the face of his absolute laziness.
She's reluctant to let him have the dc much
I don't blame her. If the situation was reversed would you want him having your children?
I get why because she probably knows that I do the lions share of parenting but again, he isn't given the chance to fail
You're making excuses for him. Would you really have let him feed raw chicken to young kids? And given his response - the fact that the look on his face leaves you feeling that he won't make any effort at all, it's not about not being given a chance - it's the fact that he refuses to even give it a try.
His 7, almost 8yo and my ds are very close and are in each other's pockets when the dc are here. They just want eachother. I think it's sweet but Dh is of the mindset "all they want is their friends, screens and each other, they don't want or need me" and retracts further into his shell
Bollocks. He's a shit parent. He wants everything to be easy peasy and on his terms. He wants the kids to flock round him with no effort whatsoever, but he wants you doing all of the actual parenting whilst he floats around like a part-time fun uncle. And strangely, because children don't tend to be that keen on spending time with people who obviously aren't interested in them, he's taking the hump over it. He sounds dreadfully immature and I'm not surprised his Ex doesn't want the kids coming over - she probably knows fine well what his attitude is.
I always tell him the younger boys would probably love it if he joined their games more, and the 10yo would definitely love to explain fortnite to him. But he's so sure they don't need him that he doesn't try
Again, because he wants everything on his terms. And because the children don't tailor themselves to his vision of parenting, his answer is to not bother with them at all. His entire attitude is appalling.
He works yes, full time for a major bank.
Interesting that he manages to hold the shit bits of a job down, eh? Almost as if the "learned helplessness" is an active choice he's making.
I've been googling learned helplessness and this is definitely what it is. However he needs to try and change for all our sakes. I'm going to ask him to go back on his ADs and also get some therapy, CBT, that he can access through work.
There's no "try" about it. His approach will be so damaging for the children, who can clearly see that he doesn't give enough of a shit to even try and make an effort with them.
I think I need to try to be less harsh with him. It's a culmination of frustration.
I mean this as nicely as possible, but what do you think you can do that his Ex didn't already try? There is nothing harsh about snapping at someone who is so lazy he would have fed raw chicken to young children. There is nothing harsh about being frustrated with someone who cannot be bothered to parent his own children, and who - despite multiple requests - continues to refuse to pull his weight.
But he doesn't react well, he sees it as me nagging and bullying him and just sinks further down
Of course he doesn't react well, because he doesn't want to lose his cushy little number where you run around after him doing all the shit life admin and parenting, whilst he gets to slope about the place like Kevin the fucking teenager.
I need to make him see I am on his side, but "no I can't" without even trying will not be tolerated anymore.
Turn this around; why isn't he on YOUR side? If someone said to you "OP I am so tired and miserable because I am doing everything and you aren't helping enough" would your response be to sulk and stomp around like the person complaining is being completely unreasonable?
This whole "I'm on your side" schtick is just pandering even further to his deliberate selfishness - and creating even more work for you as you have to tiptoe round his precious and delicate ego, because he can't cope with hearing some home truths.
How are you going to cope when one of the kids ends up refusing to visit at all because his attitude is so shit? Or when one of your kids starts getting upset because they can see that he is lazy and disengaged? Is the answer really to show them that lazy people need to be jollied along into making whatever half-assed attempt you can coax out of them?