@Achwheesht , no, it's not your choice. There are different perspectives. You don't actually know why someone might be choosing to wear something or do something unless you listen to them, and underneath that needs to be an understanding that other views can and do exist and are valid.
Also, whether or not something someone does meets another person's definition of feminism wouldn't, in my opinion at least, be justification for discrimination or abuse against them. If someone is wearing a short skirt, that doesn't mean they should be a target for verbal or physical aggression. Yet part of the daily experience of women from lots of demographics is of abuse, sometimes due to what they wear. If it's not ok for someone to experience that because they wore a short skirt, does that not mean it should also not be ok for someone to experience it because they wore a scarf on their head?
If it isn't ok, shouldn't we talk about it not being ok and how to a) support people experiencing it and b) stop the people doing it?
When I saw a woman getting hassled and upset by men the other day, I went and backed her up and checked she was ok. At no point did it occur to me to tell her that her clothing wasn't feminist enough for my personal definition of feminism.
I think one of the many challenges faced by groups when they want to highlight prejudice against them is that, as groups with different perspectives on things, the responses elicited often include an expectation on that group to defend or justify their own actions, many of which aren't the actions of the people actually trying to highlight the prejudice, which is in itself quite victim-blaming.
As a side note, another unhelpful response to someone highlighting that they've experienced prejudice is "well, I don't think it's that bad or that common".
I'm a Muslim woman who wears a scarf mostly covering my hair, when I'm able to. Before telling me that I'm wrong to do so, please can posters read back over some of the things I have experienced as a result of other people having concluded that I'm Muslim. Then, consider if my wearing a scarf means those things should be considered acceptable or tolerated by a society which claims to be free and tolerant.
If we want to live in a free and tolerant society, should we not look to challenge things like homophobia, Islamophobia, anti-Semitism, etc when we find them in the society in which we live, rather than tolerating discrimination and prejudice? Should we not look to make changes to barriers preventing people from feeling safe and welcome to participate in society, preventing people from fulfilling their academic or professional potential, etc?