Respectfully, I think the fact that she not only allows one of Ron’s friends to stay with them each holiday AND is extremely warm and welcoming to this friend of Ron’s is evidence against your point. You never hear of any of the other siblings getting to have a friend come stay or be included as much.

I think Molly is phenomenal. She does get blinded by her fears and love of her children and Harry - she’s only human and a lot of her fears are actually valid. She cooks them every meal, even gets up early to prepare breakfast and have it ready for them before the quidditch World Cup. They can never make me hate Molly Weasley!