You just can't stand your ex can you. That's what this boils down to.
She 'moved another man into the house'. I can't quite get whether this is when you were still there, after split, anything. The wording though is hardly neutral it signals bitterness and anger that you still express. What, a decade later? When you've remarried, had a baby with your new partner...
When you were together bringing in childcare for your children, who were babies at the time, was fine.
Now-
She's using various help to cover her shifts. You've said she's only adult in her home.
You say she uses too much childcare.
That the are they are now, overnights with older woman are implied to be not right in some way.
Something about various people looking after them.
She has early starts, overnights etc wtf do you expect her to do?
She works I imagine. To bring in MONEY to support her and the kids.
Finding childcare out of standard hours is a total sod and costs £££.
Having it all piecemeal is a huge effort to manage.
Been there, done that. Working out in advance. These shifts coming. Ask those people. If can't then... ? Call in favour, find someone else... It's a nightmare.
IF she's minted, ski holidays, expensive area £££ house etc.
I find it VERY hard to believe that she's juggling au pairs, neighbours, child minders etc rather than getting a nanny. Esp given when you were together had nanny.
Your posts just do not come across as neutral.
You have new wife and child. It was a decade ago.
Get over it. And behave like a grown up. Help her out, she will be more inclined to help you out. Communicate and work together as it's best for the kids.
And stop doing maths about fucking breakfasts, warbling on about looking at Hansard to see who involved in the calcs (WHY???), posting online to strangers about it, drop the resentment and get on with life.
What you're doing is tbh not healthy.