Personally I don’t think there’s any obligation. Folks have campaigned for rights to be enjoyed, not for those people who receive the rights to feel obligated to join the fight.
If you can afford it consider donating to a charity that supports campaigners for the rights you enjoy. This way you can increase their ability to campaign without needing to be directly involved.
Hard to believe ‘Fat Woman Falls Down Hole’ is 18 years old. It had a renaissance when featured on Alan Partridge Alpha Papa.
https://youtu.be/VEgatICWrvY