Agreed on every count here. Remember when there was all that hubbub about that YA OGN about Starfire's rebellious plus-sized goth daughter? Like, c'mon guys, in no universe would you have ever known this existed if not for the Internet. And in no universe will have any effect on Starfire in the mainline DCU. Just let it exist in peace and let those who enjoy it enjoy it. It is of absolutely no threat to you.
As for Nightwing and Catwoman's ethnicities, I have to agree that there's almost no point in calling them anything but while because as others have said, they will (probably) never be played or drawn any differently. It's the same way I feel about Damian Wayne. And I say this as a POC, btw.