To be honest, I am happy with Rakhi being a "villain" because she can say all those things that we want to her. Devika and Kinjal, her mother, they are also being shut down with big lectures from Anupama. So if Rakhi was her well wisher then she would do the same to her too.
I havent watched the episodes, but from written updates, from what I remember, Rakhi never had issues with their status. It all started when she saw how cheap they behaved by putting Kavya up as a mother and what a doormat / 24/7 machine Anu is. That freaked her out completely and she is trying everything in her being to help her daughter out. and things just get messier and messier in Shah family. Any mother would react the same.
And the same people who keep screaming sanskar, did not do a thing to Pakhi with her behavior with a new member in the house. was she literally looting in there. that definitely deserved a slap from toshu or anu.