I understand where you'r coming from. I know the societal ills that plague minorities/Blacks in America, to this day. (I'm assuming you are Black American...correct me if I'm wrong) I fully understand why you would make the assumptions you do on the motives of X-writers in particular when it comes to highlighting Storm's Blackness (but unless you do speak directly with the writers of the X-Men, past to present...then they are only baseless assumptions).
But...
It can be argued that the writers from Claremont to HiX-man (who are ostensibly White, I know) are just here to tell interesting and entertaining stories...as best they can...using the vast cast of characters at hand, and such topics as colourism, Black Love/relationships etc...are: 1. Not at the top of their "must do" story list. 2. Best left to those more knowledgeable and appropriate to expound on such topics (not even Hudlin and Coates have managed to adequately and properly tell those stories...though in all fairness they've made more of an effort than their X-counterparts, perhaps because they're Black and American). 3. Just not interested in telling those stories.
And keep in mind...
Black Panther is not under the editorial directive of the X-office. As such, X-Writers aren't obligated to incorporate whatever Coates is doing over in his book (thank the Goddess!) and they shouldn't have to be held accountable. Storm is first and foremost, an integral part of the X-Men mythos but it's not Storm AND her X-Men...It's just the X-Men which encompasses characters of all ages, genders and ethnicities, so to single out Storm as an example of the X-writers having some kind of anti-Black agenda comes across as somewhat overly cynical and conspiratorial on your part.