I don't agree with your interpretation. OP specifically mentioned that the libertarian position is fundamentally 'mean-spirited' and they disguise their mean-spirit with 'disingenuous reframing'. Does your interpretation fit that bill?

If your interpretation were correct, then it would still be wrong. Libertarians don't believe in 'not doing anything' -- which is clearly a disingenuous reframing of the libertarian position. Any one who knew the least bit about libertarianism would know that voluntary charity is absolutely ideal.