I agree that WSG is unplayable as horde atm and I do not agree that horde is in equal conditions and "also has premades". As far as I know the only premade horde has is chinese players from "Bright of Shine", which play at night EU time while all alliance premades are offline. There is also a Snicklerfirtz team, but they rarely q up as premade and mostly play solo, so I would not count them
In the meantime there are up to 3 (!) premades on Alliance side every single day, they start playing at noon and stop at late night (for example, 3AM server time yestreday).
It's impossible to dodge them, because this sever rarely has more than 3 BGs running, especially with recent online drop from 4k to 2k on weekends and above problem is one of the reasons of this drop. Also, I feel like there is much less alliance queuing, sometimes you have to wait up to 30 minutes in q to face the same premades, while their games take 6 minutes and they get instant q procs.
Even if you have tons of time to play every day, suggestions to "make your own premade" would not work, because you will end up playing against full epic geared raid full of r13-12 guys, while 80% your team will have 2 r7 set pieces in best case, cos you can't get more by getting farmed on GY 9 of 10 games.