cuz people suck :( but you shouldnt listen to them.. people who put others down for things they cant control aren't good people, and you shouldnt care about bad peoples opinions on you. you should find value in yourself, not other peoples opinions. which is harder said than done.. but practicing body neutrality is super helpful! its not fake overly positive "im actually so attractive and perfect!" but its not wallowing in self pity either.. your body moves your around, lets you enjoy yummy food, lets you engage in your hobbies, gives you a way to talk to people you like. thats so cool!! who cares if some idiots think you're ugly or whatever.
besides, theres billions of people.. you'll find your people who uplift you and someone who likes how you look. not in spite of your "flaws" but because of them!