'White boys cant play authentic blues?'
I would say that 'they' play different kind. What ever you like the call either one, but one can hear and recognise distinction, in a heart beat.
T Bone Walker, Joe Turner and Otis Spann, together, with others.
Album is 'Super Black Blues' from 1969.
https://youtu.be/H2BlxoEHpBoMuddy Waters,Buddy Guy,Junior Wells,Lefty Dizz with Rolling Stones live, from 1981
https://youtu.be/bpX7OhkWC-oComplete concert
https://youtu.be/GOgnZAQ6jSEIt may look simple to play the blues, but it seems to me that there are lots of music and artists that are pretending to play it, but somehow it just does not sound right. I liked the posts from Rok, the first movie tells a lot about it