Why not? The heart of democracy is that minority has no say.
What "member" those people belong to is not relevant. No doubt they can move between member worlds freely, too. The Federation has trillions of people, but just 150 members at the last count - an excellent argument for dismissing the members altogether as they have no chance of fairly representing the multitude of citizens. If two out of five Bajoran FCMs want to vote for a new tax and two against while one abstains on religious grounds, that's at least a tad fairer than having "Bajor" vote one way or another and thus disregard what more than half the population is thinking!