I'd say you all have some valid points. For me when writing it, it comes down to a few things. Taylor grew up in middle class America. To be blunt most families in that situation (even when the world isn't circling the drain) can't afford to have only one bread winner and live comfortably. Her Mom was also a feminist who only backed out of her organization when they became extremists or violent. Details slightly unclear. Being dependent on your spouse for everything is a choice, and I know more than one guy who will look at a girl proposing that and drop them for planning to be a free loader. It's very easy to see that and think "oh hey she wants to exploit me." It's also a choice Taylor's mother likely would have looked down on and Taylor almost definitely picked up on that or at the very least she would have picked up on her mothers pride in her own work.
Yes, some women, and men, lets hear it for equality and the stay at home Dads, choose to put aside any career aspirations and stay home, keep the house clean cook meals, keep the laundry to less than a small hill, stay on top of paper work and just in general spend time with their kids, to make them the focus of their life. And there's nothing wrong with that. But there are repercussions, namely the household loosing a second source of income and a gap of at least a few years on your resume which makes getting hired in the future more difficult. It also comes with the major risk that if something happens to the spouse who is working? You're living on their life insurance until you can find a job which as just outlined could be a bit more difficult than it would be if they hadn't taken a few years off to be there for their kid.
Taylor's experience with Molly is Molly throwing fits, Molly being judgmental and disapproving of Fluer her soon to be daughter in law, and Molly obsessively checking her family clock throughout the day the first two are going to poke at Taylor's bully rage button and the last is just going to convince Taylor that Molly doesn't even have the fortitude to sit on the sidelines. Never mind jumping into the thick of things.
Molly vs Belatrix. For my sanity please assume that book 6 is being used as more of a loose framework that needs to be tossed out and burned as soon as possible. Further assume that the train wreck which was book7,it's been way more than a decade but I still remember being thoroughly unimpressed, should be tossed out entirely.
Let me be clear. Dumbledores plan starting in book 6 and carrying through 7 was dog shit held together by the author decreeing "and it worked because I said so." The only thing I'll give her full credit for is not all of the Weasley's surviving. But the duel between Molly and Bela is very blatantly just the old don't threaten Mamma bears cubs analogy. Problem with that is Mamma bear outweighs you by a LOT, can run you down even if you hopped on a bike, and comes equipped with a mouth full of sharp teeth and claws that can rip you apart. A good parent will throw themself on a bomb to save their kids. That does not and never has meant that a good parent spontaneously becomes Rambo when their child is threatened. They still only have whatever skills they had outside that situation just with a fuck ton of adrenaline and a lack of restraint.
We have zero indication that Molly is even in shape, let alone good in a fight. For the sake of argument lets pretend she is a world class duelist. She's not, but lets pretend. If that's the case she did nothing to help her family prepare and took no action until the final battle. Which would make her a coward avoiding all combat while her family threw themselves in the way of harm.
Yes Taylor is being harsh and judgmental, but it's not based on nothing and no I am not going to attribute amazing combat skills to Molly. Maybe Taylor isn't being entirely fair but Molly hasn't given Taylor any reason to view her positively.
On a related note I somehow doubt I'd be getting any pushback if Taylor was scoffing at Mrs. Malfoy for being a housewife though to be fair that's different in that the Malfoy's have the financial security to live off their investments and only one kid.