First, orcs have absolutely no reason to eat elves.
True, but, imo, the orcs is a doomed race. From a prehistoric civilization stand point, their actions could be justified. However, in a more civilized age, they're way behind. And their bad actions gave them a bad rep and are misunderstood. No one wants to communicate with them and they even can't unless with magic.
Even if they transition to eating non sapient life, remember, they are forced to abduct other females to breed because they keep getting killed which in turn the abductions causes more to want to kill them. It's a downward spiral. They're on a clock before they reach complete extinction. It's way too late for them for redemption.
Also, female only species have it way too easy. Not from a man's perspective but from a reader. While they do end up in the same dilemma, they're often portrayed beautiful and most tropes have them being under protection by the protagonist. And they end up having a night with the protagonist based on all the ero novels I read.