I've always hated that expression that girls don't play games, or the modern take that those who do are only doing it to stream and get money from guys. It's a load of crap, there are and always have been plenty of girls that game, even back in the day when I first got into gaming and it was considered a fringe activity that only nerds did, there were STILL plenty of girl gamers around! Hell, I play against and with plenty of female friends and they kick my ass in games frequently! Some of my best gaming moments have been going up against a girl that's incredibly skilled at a game and either getting close to or actually winning against them. It doesn't shock me in the least that female gamers are more present than ever, because gaming is more and more prevalent year over year than it's ever been, so of course female representation grows as the market grows, the same as male representation grows.
As for streaming, well, I don't really get into that side of things, but I've seen a fair few female streamers that are just as if not more interesting to watch while gaming than their male counterparts, and it has nothing to do with what they may or may not be wearing. So bring on more of them, if it makes gamers and gaming better! Are there those that go on stream just to show off and get donations? Of course there are! But most female streamers are legitimate gamers who are quite good at what they do and often get sexualized by their male audience and the second they wear something even remotely revealing they're called whores, sluts, and so on because they're wearing something that, if worn out and about, wouldn't get a second glance, but because they're on camera and that camera might be pointing downward from the top of a monitor (as most do), giving a bit more of an eyeful than would otherwise occur, they must be doing it for the money. It's a stupid stereotype brought about by audience members who cannot keep their eyes on the game. At the end of the day, it's no one's business how they stream or what they stream for, if you don't like them or feel they're taking advantage of weaker minded males, then move onto a different streamer! Very simple.