The problem here is what is your under age brother in there, he shouldn't be there, and you are probably lying and you are just mad for being kicked out
I doubt his brother would be in an 18+ server, unless his parents raised them poorly. He's probably just upset he got kicked for whatever reason & is now lying to farm sympathy. You can look at his older messages & see he also shared his youtube account, he's probably just seeking attention & clout.