RSVPing is such a white thing to do, like camping, tanning and BYOB.
Although I can understand the reasoning behind each of the above concepts, know that I won't ask you to do any of them.
Unless everyone will be taking "heroic doses" of mushrooms, I won't go camping with you and your family. I will not go to the beach and tan because I don't need a tan. I won't tell you to bring your own booze, because I have lots. I will never ask a friend to RSVP. I will personally ask you if you are coming or not.
And if you're white and thinking "I know lots of brown people who camp, tan, rsvp and byob!", you're wrong. So wrong. White culture is not the global culture.