Sigh. Are you posting this Twitter meme seriously or is it a joke? It doesn't even stand up to light intellectual scrutiny.
As for actors, musicians etc blabbering about politics, the things they say tend to be elitist, disconnected and uninformed. Don't think it does the world any good, apart from highlighting just how far removed they are from the common man.
Actually, far from a Twitter meme, it's a millennia long empirical observation.
It's only the disconnect from power of today's citizen that make them thing they can be uninvolved with politics (and that this doesn't send a political message and have political impact).
The very definition of a citizen was one who was active in politics (the inverse being someone preoccupied with their own private matters, an "idiotis" in Ancient Greek, and the etymology for "idiot").
Um, OK... but not everything is a political act. It's just a ridiculous meme I see now and again.