Of course, feminism is a social construct, formed in response to another social construct misogyny.  
I would not say that women in the US are oppressed, but they do suffer from discrimination.  There are many protections written into US law that inhibit discrimination against women, but still, discrimination does persist.  As the current president has so clearly demonstrated, assaults on women are considered perfectly fine by some; the victims of rape are routinely treated with far more suspicion than victims of other crimes; women have a far harder time getting elected; women receive less pay for the same work; there are still fields of work (STEM, for example) where women are not welcome and are subject to much overt discrimination.  
Just a day ago, our wonderful Secy of Education announced that she would roll back protections for victims of sexual assault on college campuses; the vast majority of them are women.
cont'd