(Notwithstanding a few rogue captains out there):
Airline FO's, like captains, need to embrace their place in the world, and when the left seat becomes available, bid it. Until then, ***** and moan all you want, but its better to find out what your left seat pilots' weakness is (i.e. boating, surfing, fishing, skiing, etc) and exploit it. You'll get a smoother trip if you suck it up just a bit during the first flight and make some headway with some thoughtful inquiries about who your flying with during cruise. You never know, you might be free-lancing the airplane and hoisting up cold ones at the bar later (his tab) before you know it. It's a better strategy than playing the hard line "you can't push me around" attitude that will make for a long trip. Read the book "how to win friends and influence people".