>Why don't you personally go do that and get back to us

So, he did that. He works full time as a philanthropist, then came back to us with this blog post and said "I alone can't fix this, we need collective action, in the form of higher taxes on the rich."

The typical argument made by fiscal conservatives is "the philanthropists will remove the need of the welfare state." This rich philanthropist is writing this article to say "that is incorrect, it isn't enough."