Facebook complaint: BLOCKED FOR WHAT EXACTLY?

I was actually just blocked about 15 minutes ago for posting a response from my inbox. A man kept harassing me, sending my nude pictures and calling repeatedly on my messenger. I screenshotted the pic and calls to post them LIKE LEAVE ME ALONE… Then FACEBOOK comes and says I violated their policies by posting nude inappropriate photos. Like first off this picture isn’t actually nude, she is covered expect a little skin either way, HOW CAN YOU FIND THE TIME TO PICK THROUGH POSTS FOR NUDITY BUT SKIP OVER THOSE SAME PHOTOS BEING SEND TO PEOPLE INBOXES AND YOU GUYS NEVER BLOCK THEM OR WARN THEM?!!! Its wrong, and I want an explanation as to why certain things aren’t seen as disrespectful and blocked before they enter someone else’s messenger yet a picture is hopped on immediately…..all day I see disgusting memes n sexually content plastered all over and FB allows it…but someone literally being HARRASSED BY SOMEONE I DONT EVEN KNOW AND I GET BLOCKED FOR SPEAKING ON IT…..IM TIRED OF THIS SOCIAL PLATFORM, ITS TOO ONE SIDED FOR ME.