AITA for wanting to scream after my stepdad came after me?

I (15F) have a mom (40F) and stepdad ( my biological dad is neglectful so he is blocked on my phone.) and this situation happened today

For context my stepdad is very overweight and his eating habits have always been an issue for me. He eats very unhealthy foods and never wants to lose weight. I am overweight as well and an African-American (which is important because I am from South Carolina where most families are like mine-you’ll see what I mean).

This happened after my mom came home from a walk, we are on vacation, she was mad at my stepdad because my brothers (6M and 3M) were not dressed because he told them not to get dressed. Then he was talking about Lego Masters (because that was on the TV) and my mom said “Why are this grown people obsessed with Lego’s” and I was like “People really love their legos there is nothing wrong with that.” Then my stepdad said “Like how you used to sneak Poptarts and other foods”.

This broke my heart because I used to eat like this because I was depressed (the reason my parents) and eating helped regulate my feelings and I am very insecure about this. The kicker is this, my stepdad called me a “hobo” and “boy” because apparently wearing the same shoes makes me cheap and wearing overalls makes me a boy. I tried to tell my mom that this hurt me but she told me to shush and take the insult even after he cursed at me. To say I was mad was an understatement and they have the nerve to ask me “what my problem is?”

I do not know what to do about this. I am starting to think that this is emotional manipulation and that they like using me like a punching bag. So, AITA? P.S. Charlotte I love your videos. I am one of your subscribers and love the way you assess an argument with AITA.