America is not uniquely philanthropic but it is a huge part of our culture. We are ranked number one out of all countries. Russia is 126 and China is 128.
“Most people agree that charity is a good thing, but laws may restrict or dis-incentivize philanthropic action. Higher tax rates, for example, may negatively impact charitable giving. State-run welfare may also discourage charity, altering “a welfare system of mutual aid based on reciprocity to one of paternalistic dependency based on hierarchy,” as David T. Beito has argued in his book, From Mutual Aid to the Welfare State.”
Source: Blog | HumanProgress.org