Was it my responsibility to address it? I haven't done the research, and that article doesn't have enough information to actually lead to a response. But If I have to address it then yes, I agree, the rich have more than the poor.
If you're trying to prove you don't get the larger point, you've succeeded.
The people mentioned are generally very vocal about people being greedy for not sharing their wealth, and for not paying sufficient taxes, and generally for not being as perfect as they are. Except, they're not.
While it is true that Gates gives away a great deal of money, he can't compare with J.K. Rowling, who went from billionaire to multi-millionaire status due to generous giving. When Gates, and Buffet, and Bezos, and Zuckerberg, etc., become millionaires, I might listen to their point of view on sharing wealth.