That 2chan family claim is very probably true, since her dad planned to actually appear by voice in one of her streams, but it was aborted out of concern it would reveal her identity too publicly. From what I've heard secondhand (I don't speak Nip to confirm it) that situation ended up with her identity pretty much confirmed by an old report card posted on social media that had personal info visible. Also, she's studying in Australia, and rumour goes that she does not get along will with her non-Japanese Asian (read: Chinese) classmates.
Meanwhile, the orange-haired one is from Atlanta, which means she does not take shit lying down the way a lot of the meeker Japanese girls would. She was already known for pushing boundaries, and for not backing down. She's been banned from livestreaming by YouTube before, and when she was uploading pre-recorded videos until YouTube lifted the ban, she replaced the chat box with a large image of YouTube's logo being given the middle finger. She's also arguably the most dominant (and highest earning) girl in the entire cast. And while she mostly keeps quiet about political topics as a VTuber should, she is from Georgia, and since she's clearly not oversensitive we can take a guess what she really thinks. Case in point, her character in one of the games they play was an enormous black woman with a deliberately-grotesquely large ass and tits, alternating between calling it an "ugly monster" and sarcastically saying it's the ideal body.
So now you've got the member with probable family political connections who hates chinks already, and the big-time money maker who doesn't back down easily and very possibly hates chinks already.