That sucks. Marriage is a partnership, not a dictatorship.
She's obviously become very adept at "handling" you, though, and knows how to get your dander up. I wonder if there's a way to change your tactics to alter the situation.
I think the reason my wife and I don't have this issue is that it's easy for each of us to appeal to logic and the other will understand.
You might have to dismiss logic, and appeal to emotion with her. Figure out what her rudder is - what motivates her arguments. You are a very logical thinker, and she's completely ignoring it. It's probably not because she hates you or your argument, it's that it doesn't mean anything to her.
It's going to be difficult to think of things in an emotional context without seeming petty, but consider how commercials on TV appeal to our emotional selves and couch your arguments in a similar manner.
Also, I've found the phrase, "Well, I disagree with you for valid reasons X, Y, and Z. I won't make you do it my way when you do it, and I'll continue to do it my way when I do it." It doesn't work for everything, but it at least releases you from some pickyness on her part. Of course, this tactic also means I do my own laundry and we don't share toothpaste, for instance, so there are some downsides to choosing to go your own way on certain things.
"Of course I wear the pants in my family. I also wash and iron them."