You sound like a petulant child.
The night elves have had a ton of focus over the years. From the entire Well of Eternity trilogy to everything up to Battle for Azeroth. Legion had the entire zone of Valshara dedicated to night elf characters and night elf lore. We had an entire raid dedicated the the Emerald Nightmare. We have had a novel entirely dedicated to Malfurian and Tyrande, where they got married. We have Ardenweald and it’s entire plot revolving around Tyrande. We can take a back seat for a little bit to let other characters evolve and grow.
Asking for retaliation on the Blood Elves, who have already been exiled and excommunicated by the night elves doesn’t prove your point that the night elves deserve anything. Not all of us think like you. An eye for an eye doesn’t make things better.
You are like a kid who only knows how to resolve conflict by punching down.