Am I wrong to be angry and disgusted that an adult I dont know said "girl, he's fine!!!" about my 3 year old

Am I wrong for being mad and disgusted? My mom who hasn't even seen my son who is nearly 4 but she loves to post pictures like she is granny of the year (now background I live in Australia and it's expensive to get here but he has been to New York Mexican supported her bf bought concert tickets and we have even offered to fly her out to meet him for free) she posted a thing about how my she loves my son and some woman commented on it like "girl, he so fine!!!!" Now am I trippin for being ready to fight because nobody checked her or is my history as a child r*pe survivor fucking me up?