So you agree with everything that the "market" agrees?
No. I hate most of the market decisions. In fact, I'm pretty a hater nowadays. I'm an 31 years old man that understands fortnite's success but don't like it, that don't like most of the microtransactions, nor yearly sagas, nor console market, nor reboots that destroy what the sagas were in the past changing even the gameplay, etc... But even that, I keep spending a lot of money on games. You can call me a romantic.
I understand the damage that can cause to some people the sexualized characters and I understand that in most cases this not necessary at all. But I also understand why twitch was full of bikini girls making money.
Fuck society, but that's our society and in my opinion it's the best one the humanity ever had.
All that said, how to change and drive all this panorama to the next level?, I don't really know how. Since it's something deeply mixed with our animal nature, it's not just something artificial, it's a hard fight that I'm not sure we can win.
The market argument doesn't even make a lot of sense to begin with, especially if we are looking at sales.
JRPGs for example don't exactly sell a lot. In fact, the sales for JRPGs tend to be quite small. The argument would hold more weight if the sales of something like Horizon Zero Dawn weren't worth 20-30 JRPGs.
We, westerns, are a secondary market for japanese people and their culture is so different to our that they didn't arrive at the conclusion that oversexualized characters are something bad to erradicate.
It's difficult to judge products from different cultures. You cannot judge them with your own eyes, you have to do from their culture.