Why is it people stereotype Hawaiian girls like they know?

Hi I've been reading a lot of questions, oh what do Hawaiian girls look like. Are they fat, are they nice. I will put this to rest, Hawaii is diverse and there arnt teLly that much pure Hawaiian people. We are polynesian people. Not all Hawaiian girls have black hair and dark eyes. We have girls with all kinds of hair color like ehu which is like blonde and brown. I know because I'm part Hawaiian and mix. We all have our looks and I hate the stereo type oh tan with black hair. Unless you know please don't say anything. And a lot of us arnt mamona Which is big ok like I said we are all differ. Thanks