Say this to him and say that i personally said it:
“NEW_Undertale was never yours to begin with in terms of ownership, I made that stream because of everyone else being a jackass to me at the time but now like everything else, things have changed and people like me now because they understand me better. Before everything happened, I trusted you for TEMPORARY (Keyword: TEMPORARY) ownership rights when I was away with other things. Since you’ve hurt my friends, I hold the right to rescind your rights and I have executed this MULTIPLE TIMES for temporary ownership and future ownership. You are nothing but a regular user, and you should be site banned because of your actions that you’ve taken. You have no right to steal my property. This stream was never yours to begin with. Never was, is, and never will be. This stream was the place that I built with my OWN HANDS and you just so happened to be there when I made it and brought you along too because I thought you had been bullied before. NEW Undertale is made for everyone, and f**k you ideals because this stream is for all folks regardless of religious beliefs because I have better common sense and respect unlike you.”