There is next to no other multiplayer competitive game in which in a non scrim game clans are consistently placed against teams of randoms by the balance system. None. Pretty much the entirety of the rest of the gaming community have decided no, that is not how team based pvp games should work. There's a difference between a scrim and general play and there's a reason that almost every game besides this one ignores clan tags when autobalancing. Hint: Multiplier.
Dunno where you play but in every FPS I have ever played in the entire history of my gaming life, and currently still to this day as I play BF2:BC for example, when you join any clan server they have in thier message of the day that "You will be (re)moved as needed to make room for clanmembers both on the server and on the same team as the rest of their clanmates." /paraphrase
Maybe if you're only playing on scrubby public EA servers it works the way you describe which is fine if you merely want to play with the masses of fuckwits who can't be arsed to play against the odds and actually improve.
(Of course considering the clan you're in it's not too surprising that you don't want to be teamed up with just them often. Who would)
Being a pubbie in a team based game means you deserve fuck all. Join a damn clan or stop whining.
