I thought about using that as the starting point, but that was only when the city was officially chartered. It existed (and had leaders) for ~200 years prior to that.
Yes but you specifically stated that "the fact that Boston took nearly 400 years to elect a non-white person as mayor". Which gives the false impression that the office of mayor has existed for nearly 400 years in Boston, when in reality it has only existed for half that time.
Also, how do you know there weren't any non-white leaders during the ~200 years prior?
That's a fair point, but still, non-hispanic whites have been less than 60% of the population since at least 1990, or 33 years ago.
And Thomas Menino was mayor for the majority of those 33 years, which didn't give much opportunity for many others to become mayor.
Given that non-whites have been a small minority for the majority of Boston's existence up until recently, and also add to that the fact that non-whites have been elected in other positions, for example Lewis Hayden, who was elected in 1873 as a Republican representative from Boston to the Massachusetts state legislature.
Lewis Hayden - Wikipedia I see no reason to show concern why it took this long to elect a non-white mayor.
It's quite different for a group of folks from historically-ostracized minorities to make a group for themselves than it is for a group of folks from a historically-ostracizing majority to make a group for themselves that further the ostracizing in which their group has historically engaged.
Which isn't the case anymore. It's the exact opposite now. Minorities are pandered to by the majority, to the point of being infantilized.
Present discrimination is not the solution to past discrimination.
Do you object to the women's groups having events for women?
Depends on the event. If it was only a holiday party, which is the case in this story, and only women were invited, I would question if sexism was involved. If a male employer invited only his male employees to a holiday party would you object?