Marijuana as a term is not racist. It is an official Spanish term and was the true word in Mexico. Many Mexicans even pride themselves on maintaining the use of the term and it was the term they themselves used after immigrating to work in the USA.

Marihuana, with h rather than j, is r mostly eefer madness and Hearst yellow journalism racist connotation tho.

PS: the wiki entry the term's etymology makes the presence of a Spanish term very logic. As it cannabis was said to be brought to the America's by the Spanish. Thus a term of much importance and time to bury Alex Halperin's campaign against the term. That's one, of very few things, he got wrong.
PPS: Anslinger's Gore Files were also very damaging as Hearst gave him column space and he also took them to radio.