Bruh, this is a comedy manga. I didn’t see you up in arms at two 6y/os being betrothed and a 6y/o boy being good at whipping. Nor did I see you shocked that the father didn’t die from fainting and hitting his head. The brother is just part of the comedic effect, you realise that? No child can be lifted like that, they’ll break their neck.
Dude, chill out. I'm just saying I don't find it comedic since it seems more abusive than funny with malicious intent. The other things are just out-right ridiculous and over-the-top which makes it funny, this just seemed different to me. I was just uncomfortable, and it seems like a lot of people agree with that, so no need to answer with that kind of tone.
I am so sad to hear about people's sibling relationships in the comments LMAO, I am deeply uncomfortable by how the brother is treating her and I'm the younger sister of one. Have I just been very lucky????