When I hear a politician say "we," I always think to myself so many people are disagreeing with you. Regardless of whether or not the policy is good for the majority, there are still people in the minority who either won't get the benefits of the policy, or will disagree with the policy. "We" is really "the people who agree."
Simply stating "we have to" as a conclusive argument is insufficient within the political realm. For a medium that is responsible for significant decisions, there is a necessity for a clear and concise point when proposing an argument. We must demand thorough evidence to back up and substantiate claims, and be prepared to demand satisfaction when "we have to".