I think the whole "you guys" thing is rather silly and totally blown out of proportion by some. It's become a generic term, used in the vernacular to denote both genders. I mean really. I certainly don't care if I'm in a group and someone says "you guys." And I most certainly won't have a crap hemorrhage over it, as some are wont to do.
Something else that has become a PC hot button (at least where I live), is men can no longer say "girl's night out" when referring to their girlfriends going out to party without the men. It's verboten. But women can say it! WTH? A man can't even use the term "girl" without someone flipping out about it, but women can. Just how exactly does that work? We can also call the men "boys", but men using the word "girl" is a no-no? How stupid is that?
Doing my post graduate work at university was the longest four years of my life with all of this PC crap. There is nothing that you can say on campus that doesn't offend somebody. It's like walking on eggshells. You never know who you will set off. I hated teaching because there was always someone in the class with a PC agenda, ready to correct everything you say, or demand gender neutral pronouns or something else. I still hate teaching, btw.
I have a patient who is a tomboy. However, I am not allowed to use the term in paperwork. I must call her a "rough and tumble child." Good God, what are we coming to if we're so worried about language and offending a small minority? Why don't my favorite comedians come to college campuses any more? Why can't I say the term "********" to mean anything but the mentally disadvantaged (As in, "The engine speed was ********." <-- meaning slowed down) without being sanctioned?
I am so fed up with all of this I have become anti-PC. I deliberately go out of my way to use non-PC terms, except where I am required (like at work). I hope I offend everyone.