And if you do a dictionary search for "You Guys" you get:
"used in speech and informal writing to refer to or address two or more people"[1]
which seems to imply that it is a gender neutral phrase, despite what the definition for "guys" is. Words can have wildly different definitions depending on the context in which they are used.
One was an unarmed woman shot by law enforcement, as police have confirmed [0]. The other 3 died near the riot due to separate medical emergencies [1].
[1]https://www.merriam-webster.com/dictionary/you%20guys