Charles Darwin isn't even the most racist historical figure born on 12 Feb 1809.
And unlike the Founding Fathers, who
raped and yanked the teeth from their slaves, Darwin opposed slavery, and his friend and tutor at Edinburgh University was a freed black slave, John Edmonstone.
"Charles Darwin, through his theory and beliefs, challenged the notion that white people were superior to black people. This belief of his also influenced his research into the theory of evolution. The beliefs are believed to have been made solid by his extended family, the Wedgwoods, who strongly opposed slavery."
As for Hitler, it's well-known that Nazi eugenics, race laws and expansionism were heavily influenced and inspired by the US. In fact US racial law was so racist sometimes even the Nazis were too revolted by it to copy it.