I say sisters and brothers. It's just one of those things. I do not believe God is a gender but I also know when its going overboard on gender inclusivity. "God said God conformed the hearts because God wanted God's nature to be within Godself because God was God God God."
There is a way to say things that do not make the presentation seem to be disjointed.
I usually say Sisters, brothers, and everyone under Christ." You cover the bases without killing off the identity of those who wishes to be a male or female.
Its like LGBT. Technically, you could say LGBTQIAPFA. But I don't. I just say LGBT. Maybe it's wrong but it just sounds better without stringout out 4 minutes of acronyms.
Its with everything in worship. For example, to observe those who are physically disabled, I say "May those rise who are able...may those rise in spirit." Rather than saying, "May those who wish to rise and I understand those who cannot and we recognize your differences so rise in spirit."