Oh well, i'm not a taxpayer of this country, i haven't contributed anything yet, so i probably don't know anything. But what i can say is it's hard being an immigrant in a "rich" country even if you got here legally as we are always prone to be blamed of getting what's not supposed to be ours.
The point is you are legal your husband supports you. He contributes to the system and I have never met you but Im pretty damn sure you would work if you could. The government did not invite you to be here and give you a job and a house did they? And as for it not being safe for her to go back there where do you draw the line? If the taliban want her that much is she putting our country at risk? What is stopping them from coming here?