This is accurate. I speak from experience, since years back I was studying to be an RN. The culling of the herd is real, and there are multiple "filters" with increasing difficulty - after the A&P classes there were very few black students, and after pathophysiology and pharmacology there were virtually none. Nursing degrees have an exponential curve when it comes to difficulty. If A&P doesn't get you, Patho/Pharm will. If those don't get you, the Kaplan exam will. If that doesn't, clinicals will. If that doesn't, you just might make a decent nurse. I am not a nurse, however. I got weeded out by clinicals because I just cannot be in such depressive environments like hospitals without wanting to eat a gun. I probably should have known, but oh well!
The CNA hate is well-deserved. 99% of them are worthless fucks, and the paltry $12-13/hr they earn is overpaying imo.
EDIT: I should also add that I had a sheboon in my group for a project. She was utterly worthless, and actively harmful to the project. She could not meet ANY of her deadlines, would hardly do ANY work even though each group member was given a reasonable portion of the project. She would fight with me over how things were being delegated and would lie about just about everything. She'd yell at me about how "I'm gon' be a fuckin' nurse, no matter what anybody say!" I ended up saving the incredibly bitchy texts she sent me and showed the professor. The other group members backed me up on her being a total cunt, and she ended up being excluded from our project. We got an A, and she failed the class. Some small justice, I suppose.