Thanks for expressing your thoughts on individual and group identity in the equality and ownership struggles over geekdom.
First thought: If you feel you have something worth saying, say it. This applies to films and any other medium you choose. As you point out, it helps to approach public speech of any form mindfully, with intended and possible consequences considered. Thinking before speaking is a good practice for all people.
— Don’t automatically discount what you have to say because you’re an <insert demographics here>. You’re an individual with unique things to say. —
Tell your stories.
Second thought: The best way to work for equality is to live it. Start with the women (and other “non-self” groups) in your life: family and friends, the cashier at the store, the neighbors, the girl perusing the Sci-Fi section at the bookstore, the brown-skinned kid at the game shop… Anyone you interact with. Get to know them. Treat them with respect. If you don’t interact with many non-self groups regularly, try to seek out new experiences until you no longer find yourself picturing only white males when you see the words “human being”. Perhaps you’ve moved past this stage already.
If you reach a place where you have real influence, do what you can to ensure that demographics don’t limit anyone’s access to identity or speech. If you have privilege, use it to take back the geekdom! You can be proud to get your geek on once again, even as the geek family grows.