Stop looking at thirsty girls on the gram then. In my experience it shows you more of what you look at.
Google's getting wiser tho, I went from getting insta thirst ads to getting anime weaboo girl ads, to getting half naked dragon girl ads, until finally I recently got advertised some gay furry stuff. Nice.
That said, chatgpt is pretty decent at role playing, if you know how to trick it into it (still actually not that hard). It's an interesting topic though; some people are resistant to playing that sort of "game" with it, even though those people are fine with in-game romances such as those in Mass Effect and Baldur's Gate.
From what I can tell, this is the way Instagram recommendations treat cold start users. It was only when I started liking stuff that they went away.
I have never posted, liked a post, and follow family exclusively. I keep clicking the "not interested" option but it hasn't changed anything.
It was strange but comforting to know Meta doesn't have shit on me.