FWIW, as a woman, I’ve never cared or felt excluded when people say “you guys” or “dude”. I say these things all the time in casual conversation. The only time I’ve felt weird about it is if these terms are used in a less casual setting, and even then, it’s usually because someone has used these terms and then realized that there is, in fact, at least one woman present, and then they start tripping all over themselves to correct their wording, and it’s awkward as fuck (and a little funny) watching them try to sort themselves out.