Ms,Mrs, Miss Reid, (Trying to stay politically correct),
No you're not.
You're being sarcastic about the use of Ms.
When people trot out "I'm trying to be politically correct" the subtext is you people who want to define yourselves, rather than be defined by others, are just too cute, and don't need to be taken seriously by the rest of us.
Maybe the very idea of "Ms" offends you; you think it's bizarre or wrong or something other than "the real world, deal with it like a human being." Fine. Think that. Rant about it on your blog. Holler it to the stars if you so desire.
But do not make the mistake of assuming everyone agrees with you. Or that I agree with you.
I don't care what you think; I care how you behave.
Now I can hear the prickly pears amongst you saying "jeeze Sharkly it's just a damn salutation" and you're perfectly correct. BUT it tells me something about you. Something I don't much like. And it's a HUGE red flag for a potential client, who in the course of what I would hope will be a long and prosperous career, will need to interact politely with all sorts of people, some of whom might prefer Ms. Or be gender fluid. Or transitioning genders. And I need to have confidence that you're not going to just bulldoze your way through those interactions with "well, you look like girl, why is your name Homer?"
Bottom line: I am very happy to coach you on the arcane practices of the publishing world, but you have to come fully actualized on basic etiquette.