Both Kirk and Uhura were violated by the Platoians, "mind-rape" if you will. It's obvious that neither Kirk, nor Uhura, wished to be controlled in that manner. But describing it by using just the word "rape" is a misuse of the term.
It is certainly odd that this is still referred to as the "first interracial kiss. Star Trek itself had a previous interracial kiss in Elaan of Troyius (France Nuyen is Cambodian on her father's side).