@LoverOfAllThingsPurple you really don't seem to get it.
The time I spent with my kids when they were young was quality time. I was super organised single parent with a professional well paid job. I needed wrap around care.
Which many sahp use as well.
When my dd was younger I was full time employed. When ds was young I worked in a business of our own with (now ex) H.
My kids are not very small anymore. And if staying at home would have changed them in anyway, you can keep it. I have 2 happy and confident children, who excel at school. I am very proud of them.
The time outside work i spent with them was quality time. Despite the fact that exh has become a flat earther and conspiracy theorist then verbally abusive to them (dd refuses to see him and ds isn't bothered either). They are both happy and well.
I am sure plenty of sahm make sure they spend quality time with their kids.
However, working or not does not make for a successful parent.
A good parent is a good parent regardless of their working status. A shit parent is a shit parent, even if they stay at home.
You seem to be casting all sahm as great parents and all working parents as harassed, time poor, stressed out parents who don't spend enough time with their kids. That's simply not true.
Imagine how much a working mother would be pounced on for saying something like 'stay at home parents always seem stressed and harassed. Always moaning, hate school holidays, moan all the time and when their kids get in from school they are so tired and stressed they don't engage with the kids. Not on a meaningful level' all because I do know a couple if sahp like this. Which I do. I know one sahp who made her 7 year old spend all evening in her room because "I can't be arsed with her going on all the night'. I don't assume a sahp are shit though. It wouldn't be fair to assume most sahp can't be arsed really.
Look at the threads here who say being a sahm is harder and more stressful than working? If it's harder than working and working reduces how well someone parents....how can sahms all be amazing?
Most people do a good job of parenting regardless of staying at home or working.
Facts are being a sahp alone doesn't make you a good engaged parent. Neither does working. Its about so much more.
I know that I spend more time with my kids now they are older, than most people (I know) who took time out to be a sahm. So how does that figure in your 'can't possibly spend that much time with your kids'.