it's just more blatantly hypocritical bullshit peddled by a nasty old hypocrite of a woman.
The woman constructs a whole philosophical system, giving you ample opportunity to inspect and discover flaws in her logic, and the best you're capable of mustering is an ad hominem?
she's often used as the inspiration for killing medicare
As she should be. Other things that should rightly be gotten rid of: medicaid, social security, minimum wage, etc.
and yet IIRC she utilized medicare at the end of her life to pay for her cancer (or whatever it was) treatment.
She would only be a hypocrite if she pulled an Alan Greenspan, and advocated one thing earlier in her life, but advocated another thing later in life. She was always opposed to the medicare program, but her moral system demonstrates that there is no problem with taking advantage of medicare (which is forcibly funded with taxpayer dollars), so long as you continue advocating for its abolishment.
All you really need to know to understand Ayn Rand's books is that she was a rich girl who's family lost everything when the revolution came through her town, and that that traumatic event framed her thinking for the rest of her life.
This is exactly why she has a better insight than most. She has first-hand experience with the logical conclusion of the altruistic system under which her family was destroyed: communism.
You pretend that a person's arguments can be refuted by discovering that they're motivated by their experiences with reality. By that logic, everyone's arguments can be refuted. In truth though, your rebuttal is a simple ad hominem fallacy, and will be disregarded.