|There’s a difference between who you are and what you do. The first is your identity. The latter is your behavior.|
You can choose to be tactful and diplomatic without sacrificing who you are. These are not identity issues.
People have often said to me "If you really want to actually get to know more people, you have to be less outspoken and say only nice things, "bla bla bla…
You don’t have to say only nice things. But you could say the not-so-nice things in ways that are helpful and timely. It will win you friends and allies and that’s more effective than alienating people.