A lot of women don't feel decent or dressed without their hijab. Not everyone sees it as a sign of "control." Feminists in this country ARE concerned about women's rights globally and there are a lot of women active on that front. However, I believe the OP is using the hijab as one more opportunity to slam Islam as evil, rather than as a heartfelt concern about women's rights.
Of course you are right that there is an issue of decency and dressed properly for some older women especially --- but still, I am opposed to hijabs in a way I am not opposed to Amish bonnets, and I live in an Amish area. I cannot forget that dreadful Paki man at work who sent around the photos/family news emails all over the office about the "ceremony" where his eight-year-old daughter had to forever from then on wear this horrible restricting head thing, and we were all supposed to think that was wonderful? This was before 9/11; I bet he wouldn't have publicized that after. Nobody liked it even then. I felt really sorry for the child.
If NO GIRL EVER were forced to wear it in these coercive ways with such a "ceremony" that sets them aside from all their schoolmates and makes them excluded and different, and then when they become adolescent the death threats and the sexual ownership claims start by the father and any man he wants to give her away to, or sell her -- no. None of this works for me.
I've known lapsed Amish women, and frankly, they tend to look a little peculiar in my experience because they still wear very conservative clothes, but that bonnet and bun is gone, always. And nobody kills them for it. Actually, I wear a bun myself --- the hairstyle of my avatar is too wild for me. I wouldn't feel right about going out with harpie-hair, see above left, but I COULD ---- look at Jane Sanders, and more power to her.
The whole question is whether men are forcing us to wear X, Y, or Z. In Islam, obviously they are. That needs to stop. Women need to stop it, and men need to stop killing them for stopping it.