I'm not going to excuse her rant or her poor decision making skills as she navigates her way through life. What I am going to sympathize with is the fact that she had a rough start in life and precious few examples around her to show her how to make good vs. bad decisions. I meet plenty of people like this; people who are unprepared for the rush of responsibility they carry when thrust out in the world to care for themselves. Most of us at least know what we should be doing even if we don't always do it. We had an example. I don't think this young woman had that benefit and now she is learning the hard way all of the lessons she should have been learning long ago.
So may very well be a spoiled-brat entitled millennial, but I'm more inclined to suggest that her story is a lot more complicated than we've been led to believe, even given what we've learned about her upbringing from this article.
(Side note: one of my buddies is now retiring from the US Marine Corps; I didn't find out until I heard from someone planning his retirement party that before he joined the Marines he'd been homeless. When I tell you that he's one of the most inspiring and intelligent people I know, I'm not exaggerating. BE KIND.)