Is it wrong to be upset that women wear burkas in the US?

Okay, so I know that it's not okay to diss a culture for anything but I can't help but feel frustrated when I see women wearing burkas in the US because I feel that it's undermining everything women are working so hard to achieve, like equal rights and respect, etc. I'm not a hard core feminazi or anything and I'm not a bigot but I have to admit it's frustrating to see sometimes. Anyone else feel this way?