You don't get to determine how people receive a message. You can only take care to send it in a way that would be received well. If everyone in a large and diverse group receives the message poorly, the problem is not with the group.
If you're worried about an angry mob firing you, start communicating with care.
Apparently one of the things that prompted the memo is that google is not diverse. There are plenty of different skin colors and genders, butit's an ideological echo chamber.
Additionally people are not protected from offense in the workplace. They're protected from harassment and an abstract memo that doesn't single out individuals is not harassment.
If you're worried about an angry mob firing you, start communicating with care.