There was some need for ethnic parishes 100 years ago. For example, recent Italian immigrants spoke only Italian. So it made some sense to organize a parish based on their native language.
That doesn’t apply in this instance. Zubik Is pandering, pure and simple. And in doing so, he is weakening his Church, and his community. But why should Zubik care? After all, this is a feel-good moment.
I don't know about you, but I do not speak the same language as the majority of blacks in America. (I'm in agreement with your premise. I just couldn't turn down the opportunity to use my new found racism.)
It made LESS sense 100 years ago if you were Catholic. All masses at the time were in ONE language -- Latin -- regarding of the ethnicity of the people who attended. Didn't matter what your native tongue was, the service was universally accessible (and FYI I am not of those "we should go back to all masses being only in Latin" Catholics)
Never-the-less, there were dozens of parishes that sprouted up that were specially aimed at one ethnicity -- Italian, Irish, Mexican, Polish, etc., and it often considered awkward and unwelcoming if someone from a different ethnicity went to Mass at a church aimed at another ethnic group.
Many of them are still around, and maintain their cultural legacy, but have become much more integrated in modern times.
Personally, I have no problem with creating a new parish aimed specifically for black Catholics. It's not the same as a segregated "blacks ONLY" church, as whites are free to attend, although probably few will and even fewer will make it a regular thing.
We actually have such a parish that was created in Chicago about a decade ago, by merging four or five languishing Catholic churches in neighborhoods that had become heavily black. Nobody noticed because its NOT one of those insane "black liberation theology" churches that goes around preaching "social justice" and is Catholic-in-name-only, like "Father" Pflakey did to poor St. Sabina.
The "mainstream" black Catholic church in Chicago is St. Benedict the African. You've probably never heard of it because they get zero media coverage, and their pastor isn't out preaching crazy sermons telling them to lay down in front of traffic or attack gun store owners: