Blue.
Black and white Americans are both usually of Christian background, whether or not they are practicing.
Both are usually born and raised in the US.
Both have served in the U.S. military together.
Both like a lot of the same music. (Suburban white kids spend a lot of money on black rap and hip/hop. They do not buy much banda and tejano.)
Both like a lot of the same American food.
Both have been in public school together (although how much time they spent fraternizing may not have been much.)
Both understand American English (some choose not to speak it.)
I’m not saying there is a perfect connection. There are obvious big differences and separate communities. There are also a growing number of mixed marriages and mixed communities. Our family reunion, for example, is a lot more colorful than it was 25 years ago.
I’m saying, comparatively, the black/white connection is closer than people think. And the black/latino connection is more distant.
It has been my experience that Mexicans are more inclined to be in combat arms (ie infantry etc) billets than blacks.
Just my two cents.
I’m touched by your naive optimism, but I have to wonder—do you actually interact with other human beings, let alone the two groups you are attempting to assimilate on paper?
And before you ask, yes, I’ve got plenty of personal experience to back up my skepticism.