Choose your battles wisely. After all, life isn't measured by how many times you stood up to fight. It's not winning battles that makes you happy, but it's how many times you turned away and chose to look into a better direction. Life is too short to spend it on warring. Fight only the most, most, most important ones, let the rest go.
Just to be clear, I do often use “dude” as a “gender-neutral” term, especially when I’m excited, but if that ever makes you uncomfortable or you feel I’m not respecting your gender, you can tell me to stop because me getting to use a certain word is not even close to being as important as you being comfortable around me, okay?
This is a good attitude to have about the word “dude”