There are billions of political issues on Earth. Do you think if someone isn't protesting against water spoilage in some random village on the opposite side of the planst, then they support it?
To clarify, I would narrow my statement, perhaps, to something like this: "inaction [regarding a subject with which you are familiar and are in a position to act on] is a political position".
I'd say issues which meet this definition are still way too numerous to be active about all of them.