America (as in U.S. Government) didn't give gays a flag (you may be the only person on the planet that didn't know this). They created it privately as a symbol to wave at gay parades and functions. No taxpayer dollars went into the creation of the flag.America gave the gays a flag,
and the blacks never got a flag.
Additionally, no one recognizes it officially. In other words, it is strictly a colorful piece of fabric symbolizing their movement.
The solution: create your own flag. Another problem solved by the white community, without the outlay of taxpayer funds.