google: define guys -> https://imgur.com/a/g4jjFM8

The first definition of "guy" in most dictionaries is "A Man", including the oxford english dictionary so while common use is that guys is genderless consider maybe it's not as clear cut and dry as you would like? And there is a reason why it's becoming an issue (the women and non binary folk who don't like it finally feel like they can speak out against it?)

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.

[1]https://www.merriam-webster.com/dictionary/you%20guys

I can't say I agree with your reasoning of why some people think this type of thing is an issue. Also, your screenshot—I’ll assume unintentionally—has the plural definition hidden.

google: define guys -> https://i.imgur.com/b6PJRsa.png

“people of either sex.”