A lot of developers don't want to make those games regardless of petty social politics. It's not productive to imply that teams working in creative mediums should optimize for profit to the exclusion of what they want to make or are good at making. There is a lot of room between the scattered financial flops of big producers and gacha waifus. Great things are in that space.

1. gacha, not gocha

2. Ubisoft is large, it does both. it has several mobile games. No gacha models, AFAIK.

3. "You don't need to ask people define what they want". If someone is going to assert "make good games", then yes. I may as well just simply ask them. Alternatively: do you really think I'll make Genshin Money if I just copy Genshin? a dozen studios already beat me to it.

4. "I doubt the DEI departments at Sony, EA, Ubisoft and Microsoft will let them release games with waifus and jiggle physics so they'll have to keep saying no to money to die on a hill." Those aren't the only ways to make money. Not even in Asia. And this is an odd statement given Sony did publish Stellar Blade this year. Its wishy washy but it's not like there's some hidden cabal banning this stuff. It really comes down to a mix of culture, PR, and sales. Dead or Alive's newest dating sim isn't releasing in NA just because of "DEI"

Gacha + waifus is definitely a huge hit. Especially because it also capture the female audience. Also cosplays on conventions do free advertising. (see Genshin Impact)

Never seen a eastern studio release a game of this genre.

It's a mixed bag. Like any other live service game, you'll see 1-2 breakout hits and then 100 more that can't even last a year. Sex can't magically sell everything.

relying on organic advertising is even harder than making a good game. Some things are just in a snug little corner and never truly break out to that mainstream.

Is it really a "want" if it's an addiction?

Are attractive female features an addiction or natural reaction to biology?

Depends on if they're actual female features or something that doesn't exist in nature.

EDIT:

I was referring more to the addictive nature of gacha games.

Games aren't addictive because you can see under a girl's skirt, as that gets old pretty quick. They're addictive because they're fun to play. The waifus are to draw players interest.

They're not addictive because they're fun to play; they're addictive because they activate certain parts of your brain in a certain way.

A dude staring at a screen just clicking buttons with no expression on his face for hours on end might say he's having fun, but that's gonna be hard to sell me on.

You know Stellar Blade, a game you used as an example in your first comment, was published by Sony, right?