As an American living abroad, I get a lot of assumptions lobbed my way. They are mostly not true (I don't own a gun, I don't hate Muslims, I do speak more than one language - in fact I speak 2 foreign languages well and another with basic proficiency, and one of those languages is really hard, I am not conservative, I am not religious, I do follow world news, I don't have a dog, and I've never had more than one "boyfriend" at a time, and in total have not had that many) so I'm fine with saying so. I love broadening minds everywhere about what real Americans are like!
As a liberal feminist, I get even more assumptions lobbed at me - and some are partly true (I do lean a bit towards Socialism, for instance, and I am pro gay marriage and pro choice) and some are false (I don't hate men, and I don't hate America!). Not that I want to discuss politics - I don't! Just pointing out that people assume things about all sorts of groups, even groups who share political beliefs.
As someone who is ethnically Armenian whose family came over during the 1915 genocide/diaspora, I get even more assumptions - "So, your family must hate the Turks, huh?"
Well, yes. In fact they do. Especially my grandfather. *I* however do not hate Turks. I hate what was done to my family, but Turks alive today didn't do it. (It'd be nice if they'd recognize that it happened but you can't blame an individual Turk for that, or for being mis-educated about it).