Illogical, but okay. A 2-5 team lost to a 6-2 team; it's not logical to be outraged or to expect to win. Our team did about what it usually does; the only (somewhat) unusual problem that really came up were Threet's bad decisions, and he has been set up to fail all season with his injuries and inexperienced supporting cast.
But, it's still fine to be mad. You're probably mad because you saw the game, saw Michigan gain the lead with less than half of the game remaining (no pun intended), and saw Michigan hold its own for awhile. The team isn't as good as you hoped, and that sucks. But you can only be mad because you feel like this team has a chance. Teams like Washington are ghosts, appearing to exist but not really affecting anything real and just hoping for the end of the season. No one really cares about them. What's worst than anger is apathy. When people give up on their team, that's when it's over.
Vent because you have to, regret the mistakes and flaws throughout the game, and then keep watching until the (probably) bitter end. (Don't get all ad hominem on people though; calling Stevie Brown's job as a safety crappy is okay; calling Stevie Brown's mom a crackhead is racist and only proves that you're an idiot.) As long as you keep supporting the team, they'll have a chance to become the team you wanted. Probably not this year, but before too long, Michigan football will be back. And when it is, you'll want to be there watching.