Whatever the chicken-and-egg arguments for why fewer African-Americans are in the majors, baseball is going to have get things re-started by providing the chickens and the eggs.
Bluetooth may be cheaper, but it faces many of the same chicken-and-egg problems: why pay extra for a Bluetooth-enabled printer if you do not have a Bluetooth-enabled laptop, and vice versa?
In other words, why should we all start running around and screaming like Chicken Little that the marriage sky is falling when marriage seems central to American culture and values?