The insistence that someone is focusing on genital's and have a pervasion when asking this really does seem like a projection on the part of the folks making that claim, and I have noticed the genitals things come up over and over now in this context - it seriously is WEIRD! Please read up on projection.
Many of us are married, with kids, and focusing on the genitals of work colleagues is the LAST thing on our minds.
I've broadened it in the past, hey guys and girls or hey guys and women - all less than ideal in my view, girls doesn't have same connotations as guys, and women or ladies feels awkward. Hey people works well in my view. But when a women says to me, hey guys, want to get coffee - I don't freak out on them with this type of focus on genitals / perversion language. I just say, sounds great - 5 minutes? And away we go very happily to chat about whatever issue has come up.