I've been a sahm and I'm now a working mum, and I fully respect mums no matter what they choose to do, neither is the easy option.
What I do grudge is people like Grabby who use having children as an excuse to be lazy, not work and not pay anything into society (either money or time value). She isn't staying at home because she feels it is better for her children, or because she has childcare difficulties, or even for her health, it's pure laziness. And she exploits followers on Insta and Youtube in order to sit on her arse or go the gym, not to spend time with her children or benefit their development in any way. She is the middle class version of a Jeremy Kyle chav.
I'd have more respect if she wanted to be a sahm because she believed it the better parenting option for them, but that she planned to volunteer when Poppy is at school, or even undertake some self-development such as distance learning.
Look at Kelly from Organised Motherhood, she's given up work to be a sahm but she is undertaking some courses, produces thoughtful content, does a lot with her children and educates herself with the types of books she chooses.
Grabby just wants to film ads, post aff links and sit on her skinny arse all day.
Not a great example to set for her "girl gang".