first of all i’m truly sorry you feel this way about yourself and that OP had to go and further validate that family members can think that way because i’m sure you’re truly a beautiful person inside and out and how others perceive your looks does not define who you are. secondly OP i truly hope you find some peace in this world rather than bashing your own blood online no matter how unserious, saying things like that could really cut deep in a person.
They probably think that if each other too. I know some people are born with certain looks that the world thinks is beautiful. It doesn’t matter, try to empower yourself and change what you can. I bet you are a really nice person, with humility and kindness. These qualities are truly appreciated by many. Do not let them live in your mind.