People have their first admendment rights UNTIL it harms others. You cannot go into a movie theatre and scream “Fire!” if there is no fire, without having charges put against you.
The photo that the both of you posted is racist and harmful.
Here are some articles written by other people (btw I gave these to her too, not just my opinion):
An Open Letter to Non-Natives in Headdresses
But Why Can’t I Wear a Hipster Headdress?
The Fighting Sioux are back: My passionate plea against Indian mascots
Open Letter to the PocaHotties and Indian Warriors this Halloween
Halloween: Time to Wear Your Indian Costumes
Halloween Costume Shopping: A sampling of the racism for sale
My Identity Is Not A Costume for You To Wear!
On why prancing around in a headdress and war paint isn’t ~appreciating~ “native culture”
Redface!- The History of Racist American Indian Stereotypes
The Native Object - Or Do Not Reduce Us to False Symbols of Your Environmental Movement
Read it. Learn something. Because you are promoting racism. And it needs to stop. Why do you care more about your vanity than an entire race!?