The topic & question "is this critic qualified to review this type of movie?" is a very old one (way back when fans of Fritz Lang advised their readers on the merits of Tango & Cash, for example), but what's changed here is regressive cretins like Brie Larson now associate skin color & gender as the defining qualifiers. Not only is this line of thinking totally racist & sexist (despite their best efforts to hide behind pseudo-scientific social data in order to justify their race & gender hating against white men circa 2019), it's also utterly... stupid. Because if that were true (i.e. movies with female leads must be reviewed/interviewed by women or some other diversity non-white quota person in order to be "fairy represented"), then it would also apply to movies with white men as well.
Next time a non-white woman tries to give her opinion on Iron Man (or interview the lead actor), Robert Downey Jr. (following Brie Larson's example) would be entitled to tell her to f-off. Somehow, that seems like the total opposite of actual real diversity & inclusiveness.