Why are some Arabic girls so mean🥲

I am a female first of all because many people are mistaking me for a guy and attacking me. No offense though there are some who are so kind but they're so rare, like once I met this kind girl in global village who offered me her food too, she was so sweet and humbled. And then when I was a kid, I used to be bullied by my Arabic classmates who were girls and they would call me names in Arabic knowing I don't understand it and I was still kind towards them and then I often have come across different nationality such as Lebanese, Egyptian Arabic girls who act the same way, bitter, mean and judging others. I have always been friendly and kind so whenever I come across them, it kinda makes me wonder if I'm doing something wrong lol. Right now I came across a girl who told me to shut up in Arabic and she was from algeria, and she probably knows that idk Arabic so I thought it's really rude. I didn't even say anything to her.

Update: reading the comments I felt really happy but please don't use this as a chance to look down on Arabs as well. Many of them are also good people like the ones commenting in the comment section and the fact that I'm not the only one who experiences it makes me feel better. None of you are alone and if you want to be heard, my DMS are always open There is a bad and good person in every ethnicity but we can spread love so people don't forget good. If we fight racism with racism, it is stooping to the same level. Thanks to these comments, I feel happy but guys please don't use this chance to make any racist remark on other ethnicity whether it is Arab or Desi, we all come from same sand and go back to same sand so let's stay humble regardless<3