Yes in SL. Priest and druid healers were meta most of that xpac and shadowmeld is still absolutely broken OP, so if you couldn’t meld>drink you were just throwing.
EMFH is still absolutely nuts for every single DPS that can get it
Then to add fuel to the fire, assa and feral were doing crazy damage with dots, making Fireblood join the other 2 racials in being S tier in arena.
All of the above caused most top players to swap to Alliance.
The final nail in the coffin was allowing cross-faction arenas, meaning you really had no excuse not to be a night elf, human or dark iron. The exception for the most part was just shaman, which still prefered to be orc for the stun reduction, but considering the fact they just nerfed that racial by 50%, except every remaining horde shaman to be a dark iron within days.
On top of all of the above, most of the horde racials are laughably terrible or outright ruin your spec for you. Touch of the Grave still breaks stealth for rogues, meaning being an undead rogue is throwing.
War stomp is still good, but is it better than EMFH? Is it better than meld>restealth or meld>drink?
Trolls dont have a racial, neither do z troll, nightborne or vulpera. HMT racial is a joke that will probably end up killing you more than anyone else.
Blood elf did have a great racial in an aoe silence which made them a great option for paladins, dks and especially warriors, but they turbo nerfed that racial and now it is utterly worthless unless you’re 1v1ing a paladin or something and can reliably dispel BoP with it.
All of the above means that every single top player is Alliance, which means all of their viewers copy them, which then means everyone sees all of those guys alliance, convincing them to go alliance as well, on and on, chain reaction, until we’re at the total alliance dominance we are and have currently been in for around 2.5 years now.
Even US servers are starting to do it - and NA is notorious for being slow to adopt metas.
Solution is pretty simple: disable all racials in pvp. A large part of why assa rogue got nerfed was thanks to shadowmeld allowing free restealths. A large part of why mana got nerfed so hard was the same reason. They regularly balance for burst thanks to human rets and human warriors doing absurd burst with their 1,000 extra stats trinket, etc. Just disable them. I don’t want to play a human warrior. I don’t want to play a nelf rogue. I want to play horde, but the game makes it really uncomfortable to do so, when not only do I not get shadowmeld on my rogue, I also get knocked out of stealth every time my racial procs as undead.
But this is a suggestion that has been requested daily for the past 15 years, so i don’t have much hope for it.