The solution to what ? Could you describe the problem in the (above) Wilt Chamberlain example ?
The problem is, nearly never, access to resources: modern society (including in poor countries) puts necessary resources (food, clothing, shelter and even transportation) available to all at a very small price. Our material needs are 100% guaranteed.
The problem is that most of the goods that modern society produces are unavailable for most of the population. By reducing inequality, we could improve life quality for the masses.
So the original argument stands: forced wealth redistribution is incompatible with free will and liberty. The word "force" itself means the removal of freedom.
You van spend your money however you want. Taxes simply mean that everyone benefits from spending, not just WC.
I'm not making a moral statement here. I'm not saying whether it's good or bad for the government to do this. I'm just making an observation that, logically, the parent didn't provide a "solution" to the grandparent's thought experiment.