https://www.forbes.com/sites/aparnamathur/2018/07/16/the-u-s...
While it is true that much of the recent wealth in the U.S. is self-made and not entirely inherited. It's also true that a child born poor in this country is far more likely to stay as such than they are to become part of the top 10%.
If we lived in an egalitarian society, then pointing out the wealth of the top 10% might be divisive, but considering that our current wealth inequality is worst than 1774 France, then I believe it's a fairly accurate picture being painted.
https://www.theatlantic.com/business/archive/2012/09/us-inco...