I can't provide any video since no world class kickboxing/TKD striker fought the Gracies or any other grappler, captured on easily accessible tape.
Um, I don't know if you read my earlier post, but there are plenty of world class kickboxers and other strikers that have competed in MMA, from the beginnings of the UFC up through the present.
Gerard Gordeau, Semy Schilt, Mark Hunt, Maurice Smith, Rick Roufus, the list goes on and on.