This is an odd argument. Are you saying that paying taxes is some form of altruism? The story is about a guy who donates money with no tangible benefit to himself. We all get benefits and services from the government. It debatable whether the value we receive is equal to the amount we pay in taxes, but the value is certainly not zero.
The only way you get close to the claimed 66% number is if you are including all spending, including overhead, of the programs identified.
https://en.wikipedia.org/wiki/List_of_governments_by_develop...
Even if you count "non-altruistic" foreign aid (i.e., aid given to a recipient government by a donor government who also benefits, e.g. military aid), this barely budges the numbers. The US goes up to about 0.3%.
Throwing in private aid, like Wage's, makes the US look comparable to Europe because the US gives more money privately than Europe. But this is still within a factor of 2.