I am long time 7y Alliance player but played on Horde side for 11 mounth in WotLK as BE FDK main and some time in MoP as raiding alt.
So my account is old (since 2006) and full of Alliance characters on retail.
Some people had long lost their accounts and joined Classic WoW on new ones. They have no connection to them what’s so ever.
You better pray that they deside to rage quit or go to PvE or Alliance mega realm and not create new account joining the Horde and making your queues even longer.
I have alternative solution in my thread.