This is exactly what I brought up with my post on here earlier. It's easy to ignore the red flags because you have an intense lust for her due to being hot. As you said, women like this are broken and should be reserved only for short term flings.
However, I do know some men who are in relationships with these types of women. There is one woman in my area, she is a couple years younger than me, very attractive white girl who is a gym thot from an upper middle class background. Her bf is probably the biggest douchebag I've ever heard of, associates with real estate scam artists, poser, pretends to have money, etc. Anyway, they BOTH actively cheat on each other and sleep with other people despite the fact that they are living together, it's like wtf is the point of being a relationship lol.
There are a few other instagram thots that I know of and if you look at who they are friends with, date, etc. it all makes sense, it's like they literally have no moral standards. One of the real estate scam artists I told you about would date many of these thots, it's blatant that is what he is but they don't give a damn because he has money or at least spends it like he does.
This is what I see as the take home here. As a society and culture we've become so materialistic and fake to the point where this is not all that extreme anymore. All of these instagram thots and what have you are a result of the cultural changes social media has brought. It's interesting because when I was in my early 20s, so 2010-2012ish, the constant selfies on social media were something only reserved for celebrities and then you'd have a handful of random women engaging in this. It's once instagram got popular in the second half of the past decade when what we are seeing now as more normal. There's also a big difference between people who are in their late twenties now, where social media didn't really become a thing until high school, compared to those who are in their early twenties who more or less grew up with it.