Astel's confusion about more girls watching his streams reminds me of my experience as an Axelotl especially. Like, as much as Axel is a sort of guy I'd like to tune into, I find it freaking surprising that someone as dudebro as him is that big a VTuber.
I can't remember where I heard it, so it might be bullshit, but I remember hearing at some point that apparently Axel has the highest percentage of female viewers in YT's male/female viewer ratio out of Tempus HQ. My jaw dropped. Especially considering how much of a dudebro and Aussie lad that guy is like you said, I always kind of assumed it to be Altare.