Where does it say that Molly is a pureblood fanatic???

[Casey]

No: HPFGUIDX 125338


Betsy: 
But I still think that there is some latent distrust of anything not 
wizard in Molly, and at times of worry or stress it comes to the 
forefront.  So she's not Death Eater, and won't become ESE, but she 
*is* old fashioned in her views - more so than Arthur.

Casey:
I think Molly is like most Wizards, she never really thought about 
Muggles because they aren't part of her normal day-to-day life. Once 
she married Arthur she would hear about the odd things Muggles did 
but, outside of Hogwarts, she probably never had contact with them. 

Yes she met the Grangers, but she doesn't really know them. Hermione 
did stay at the Burrow, but how much do you really know about a girl 
after only seeing her (IIRC) a few weeks during the summer. I doubt 
Molly gets long letters saying how great Hermione is from Ron.

I also believe that, like many Wizards, she has a larger than life 
view of Harry. He is a young man that lost his parents while saving 
the Wizarding world. He kicks every motherly instinct she has into 
high gear. Also, since she isn't his parent, she hasn't had to put 
up with his back-talk and attitude like a real parent would have, 
thus dulling some of that hero polish off. As a result it's very 
easy to believe the gossip read in the papers.