Ok, I'm sorry for being that SJW, but really? The fuck? So Sorano says all that shit and just gets away with it? So, your sibling is borderline suicidal and you say shit so rude you knock them unconcious? Just...damn. This feels like a karma houdini if ever I saw one.
Also, trans or not, dressing as your ideal girl isn't that weird, there's plenty of AFAB ppl who do that and that's not wrong either.