She never said any such thing about voluntary choices. Her objection was to governments (or quasi-governmental churches like the author's) compelling sacrifice from their victims.
“Making sacrifices for one’s born or unborn children, one’s elderly parents or other family members becomes anathema for Ayn Rand.”
She said a sacrifice is giving up something you value highly, for something which you don’t. If you value your elderly parents, and you decide to assist them, it is a rational choice for you,,,not a sacrifice. And she is right about one thing, someone demanding a “sacrifice” is at the root of almost all evil.
She never said any such thing about voluntary choices. Her objection was to governments (or quasi-governmental churches like the author's) compelling sacrifice from their victims.
Yet she left her parents behind in Russia never to see them again, alienated most of her acquaintances and died an extremely lonely old lady, some say due to her emphasis on "self".
Particularly in Atlas Shrugged, she delivered an ideologically pure message, but it is not in evidence she had the thoughts and values attributed to her in this article.
Giving because some entity has a gun to your head forcing you to do it, is not altruism.