So if they're not giving it to charity to avoid paying the taxes they whine about, why should we believe that they'll give it to charity if we get rid of taxation?
> poverty was decreasing between the 40s and 60s
... something which had little do to with welfare or private charity.
> I know you'll find this hard to believe but its true the richest in our society give more than anyone else to charity.
I don't find it hard to believe at all. What you're finding hard to believe is that even though the rich give more than others, it's still a drop in the bucket compared to government-supplied assistance.
There are certainly a number of things that could explain this.
Community cannot be coerced.
Unrelated - money is no longer on gold-standard it is on labor standard. One US dollar is equal to an amount of productivity. They cannot be decoupled without dangerous effects. Gold was once an efficient measure of labor and was hence a form of money. Labor is and has always been the unitary method of exchange.
Unfortunately, there are a lot of confounding variables in that comparison, namely those associated with the passage of time.
It doesn't even pass the sniff test; the idea that all these people whining about having to give up their money to other people would start giving up their money to other people if it was 'voluntary'? And people actually get sucked in by this argument?