Perhaps they are using the proceeds from the t-shirts to start the revolution. But I don't think revolutions are that cheap. If you could start a revolution merely from the proceeds of t-shirt sales, Hanes would already be our overlord.
And actually, revolutions are mostly about bitching. Common Sense: mostly just bitching about stuff. The Declaration of Independence: bitching to King George III.
So t-shirts, you have not convinced me. Hug that out, bitch.