Totally disagree, my godchilds parents probably could have put up and shut up, but jeez it made for a very very unhappy and sad house and environment to bring children up in, in fact it lead the youngest who tbh was a bit of a band aid baby, becoming very anxious because of the atmosphere in the house.
The parents were indifferent to each other, not emphused by very much, even play time with the kids was dull, or even excuses made not too, the three kids looked after themselves in terms of entertainment more often than not.
Then because the parents couldn't find any escape, they both had affairs, and now because of those affairs they really really hate each other, to the extent more often than not my friend has to talk to the children's lovely step mom.
But the kids very much enjoy spending time with both parents and their partners, they are so much happier than they were. Mum has started relaxing because dad isn't there to be the one that does the hobbies and fun things, so the kids interaction with her is less oh mum doesn't play/do enjoyable hobbies with us. With dad there's less rush to get out of the house and do stuff, it's become ok just to chill around the house it's a pleasent bonding time. The atomspere of both houses has changed from the one they shared together.
Many of us look back in hindsight and wish they'd split as friends, before the unholy mess of the affairs and so the children didn't endure the sad atomosphere of their parents going through the motions.
And I'm the child of divorced family, at first they were great friends we even went on holiday as a family when I was 6 (2years after the separation) so very much the oh couldn't you put up and shut up, until my step mom came along and convinced my dad my mom was a crap mom, (she wasn't and isn't, as I've got older I absolutely understand what brilliant mom she is) I'd still preferred them divorced than together, it was bad enough them screaming at each other every weekend at pick up/drop off than having to have it all the time.
My brother tells a story, of waking up, hearing mum and dad arguing one night turning over and thinking oh here we go again, only this night the arguing woke me, he at 6 years old got up, got me and we sat at the top of the stairs,eventually he took me back to his bed where our parents found us. No no child should live like that. If divorce means two happy involved parents, separately, rather than two parents who either argue the whole damn time or can't engage with the kids then surely divorce is better