Hollywood did not hire people who weren't white, unless they were black and used for a black role, and not always even then, for a very long time. Even today there are representation problems in Hollywood and in other media in general. In other words, America is racist, nice of you to notice.
As somebody who immigrated to the US, I came to conclusion that a lot of the world is far more racist. US is just openly fighting that so it is much more visible.
I love that Paul Mooney bit on Chappelle’s Show where he laughs about Tom Cruise playing the leading role in a movie called The Last Samurai. He says “Here’s a movie I want to see: ‘The Last N——r on Earth.’ Starring Tom Hanks!”
I don't think it really matters if he looks like the actual dude. It's rude as hell to pick a generic/famous white guy to portray a non-white historical figure. Some stills of him look really similar for sure but actually watching Lawrence of Arabia he just looks like someone rubbed dirt or bronze on his face and called it good enough
How about Iron Eyes Cody playing the famous crying Indian commercial though he's Italian and spent most of his career running actual indigenous peoples out of Hollywood.